Ok...I did a test with MC 11.1 and Dell DJ Explorer and transfered the same 4 files (31.8 mb). The DJ Explorers was about 4x faster than MC 11.1. To be honest, maybe that is the usual transfer rate (2.0~2.5 mb/sec) (I could have been off on that 'memory'). The DJ Explorer is definitely always 4x or more faster than MC 11.1 in transfers. Even in aquiring the list of whats on the Dell DJ is faster (blink of the eye) using DJ Explorer.
Here's the log of the MC 11.1 sync of these 4 files (mp3s):
0004796: Handheld: CHHManager::Upload: Start
0004796: Handheld: CHHManager::Upload: Finish (0 ms)
0004796: Handheld: CHHManager::Upload: Start
0004796: Handheld: CHHUploadHelper::UploadFiles: Start
0004812: Handheld: CHHUploadHelper::UploadFiles: Finish (16 ms)
0004812: Handheld: CHHManager::Upload: Finish (16 ms)
0004890: Handheld: CHHUploadHelper::VerifyTransferContinue: Start
0004921: Handheld: CHHUploadHelper::VerifyTransferContinue: Finish (31 ms)
0004921: Handheld: CHHManager::GetConversionEncoderPlugin: Start
0004921: Handheld: CHHManager::GetConversionEncoderPlugin: Creating encoder plugin: 'MP3 Encoder'(Handheld\$$?$usb#vid_041e&pid_4127#01012551be038fd7#{f33fdc04-d1ac-4e8e-9a30-19bbd4b108ae}$0)...
0004921: Handheld: CHHManager::GetConversionEncoderPlugin: Finish (0 ms)
0004921: Handheld: CHHPluginThread::ProcessCommand: Start
0004921: Handheld: CHHPluginThread::Thread Message Processing: Start
0004937: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0004937: Handheld: CHHPluginThread::Thread Message Processing: Finish (16 ms)
0004984: Handheld: CHHPluginThread::ProcessCommand: Finish (63 ms)
0004984: Handheld: CHHPluginThread::ProcessCommand: Start
0004984: Handheld: CHHPluginThread::Thread Message Processing: Start
0004984: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0004984: Handheld: CHHPluginThread::Thread Message Processing: Finish (0 ms)
0005031: Handheld: CHHPluginThread::ProcessCommand: Finish (47 ms)
0005031: Handheld: CHHPluginThread::ProcessCommand: Start
0005031: Handheld: CHHPluginThread::Thread Message Processing: Start
0005046: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0018390: Handheld: CHHPluginThread::Thread Message Processing: Finish (13359 ms)
0018406: Handheld: CHHPluginThread::ProcessCommand: Finish (13375 ms)
0018437: Handheld: CHHPluginThread::ProcessCommand: Start
0018437: Handheld: CHHPluginThread::Thread Message Processing: Start
0018437: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0028265: Handheld: CHHPluginThread::Thread Message Processing: Finish (9828 ms)
0028312: Handheld: CHHPluginThread::ProcessCommand: Finish (9875 ms)
0028328: Handheld: CHHPluginThread::ProcessCommand: Start
0028343: Handheld: CHHPluginThread::Thread Message Processing: Start
0028343: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0039921: Handheld: CHHPluginThread::Thread Message Processing: Finish (11578 ms)
0039937: Handheld: CHHPluginThread::ProcessCommand: Finish (11609 ms)
0039953: Handheld: CHHPluginThread::ProcessCommand: Start
0039953: Handheld: CHHPluginThread::Thread Message Processing: Start
0039968: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0053781: Handheld: CHHPluginThread::Thread Message Processing: Finish (13828 ms)
0053796: Handheld: CHHPluginThread::ProcessCommand: Finish (13843 ms)
0053875: Handheld: CHHPluginThread::ProcessCommand: Start
0053875: Handheld: CHHPluginThread::Thread Message Processing: Start
0053875: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0053875: Handheld: CHHPluginThread::Thread Message Processing: Finish (0 ms)
0053921: Handheld: CHHPluginThread::ProcessCommand: Finish (46 ms)
0053937: Handheld: CHHPluginThread::ProcessCommand: Start
0053937: Handheld: CHHPluginThread::Thread Message Processing: Start
0053937: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0053937: Handheld: CHHPluginThread::Thread Message Processing: Finish (0 ms)
0053984: Handheld: CHHPluginThread::ProcessCommand: Finish (47 ms)
0053984: Handheld: CHHPluginThread::ProcessCommand: Start
0053984: Handheld: CHHPluginThread::Thread Message Processing: Start
0053984: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 2
0053984: Handheld: CHHPluginThread::Thread Message Processing: Finish (0 ms)
0054031: Handheld: CHHPluginThread::ProcessCommand: Finish (47 ms)
0054046: Handheld: CHHPluginThread::GetMemoryInfo: Start
0054046: Handheld: CHHPluginThread::Thread Message Processing: Start
0054046: Handheld: CHHPluginThread::Thread Message Processing: Type: 0, Function: 1
0054046: Handheld: CHHPluginThread::Thread Message Processing: Finish (0 ms)
0054093: Handheld: CHHPluginThread::GetMemoryInfo: Finish (47 ms)
0054093: Handheld: CHHManager::GetFilesFromDevice: Start
0054093: Handheld: CHHManager::GetFilesFromDevice: Finish (0 ms)
0054125: Handheld: CHHManager::GetConversionEncoderPlugin: Start
0054125: Handheld: CHHManager::GetConversionEncoderPlugin: Creating encoder plugin: 'MP3 Encoder'(Handheld\$$?$usb#vid_041e&pid_4127#01012551be038fd7#{f33fdc04-d1ac-4e8e-9a30-19bbd4b108ae}$0)...
0054125: Handheld: CHHManager::GetConversionEncoderPlugin: Finish (0 ms)
0054140: Handheld: CHHManager::GetFilesFromDevice: Start
0054140: Handheld: CHHManager::GetFilesFromDevice: Finish (0 ms)
0054515: Handheld: CHHManager::GetFilesFromDevice: Start
0054531: Handheld: CHHManager::GetFilesFromDevice: Finish (16 ms)
0054531: Handheld: CMCHandheldViewInfo::CMCHandheldViewInfo(): Start
0054531: Handheld: CMCHandheldViewInfo::CMCHandheldViewInfo(): Finish (0 ms)
0054562: Handheld: CMCHandheldViewInfo::CMCHandheldViewInfo(): Start
0054578: Handheld: CMCHandheldViewInfo::CMCHandheldViewInfo(): Finish (16 ms)
0054593: Handheld: CMCHandheldViewInfo::~CMCHandheldViewInfo(): Start
0054593: Handheld: CMCHandheldViewInfo::~CMCHandheldViewInfo(): Finish (0 ms)
0054609: Handheld: CMCHandheldViewInfo::~CMCHandheldViewInfo(): Start
0054609: Handheld: CMCHandheldViewInfo::~CMCHandheldViewInfo(): Finish (0 ms)
0054609: Handheld: CHHManager::GetFilesFromDevice: Start
0054609: Handheld: CHHManager::GetFilesFromDevice: Finish (0 ms)
0054703: Handheld: CHHManager::GetFilesFromDevice: Start
0054703: Handheld: CHHManager::GetFilesFromDevice: Finish (0 ms)