I apologize, I don't know my plus from minus and was heading in the wrong direction and because it was so far out I guess I didn't notice it getting worse, just couldn't hear it getting better.
Minus to bring the subtitle forward was a bit counter-intuitive for me. I guess this is a relative thing, my thinking was that the timing of the subtitle was relative to its position, but I guess to frame of reference is the video. Oh well.
Thanks again and sorry for the false report....
PS: While you are reading, going to slip in an idea for V18... it would be great to be able to drag a poorly named and located subtitle file (say downloaded from subscene) and drop it onto the relevant video file and have MC copy and rename the file to the same location as the video file. The same behaviour could work for music/lyrics? Images for coverart? Season posters in season views? Are there other examples. This idea came about as it is a pain to download from web, then have to rename to match exact name of video file and dump it in the directory.