It would be a disaster because the fix you have performed has moved parts of the completely wrong tracks onto the fronts or ends of other tracks, depending on what kind of shift you used, i.e. you will find a millisecond of the end of track02 shifted to the beginning of track07 or a millisecond of the front of track07 shifted to the end of track02. I doubt that's what you wanted.

As for track08, all you've done is padded the end of it, which is pointless.

Frankly you are better off just burning it with the SBEs, than burning a fix job like that. I would consider such a 'fix' to be a complete and total fuckup.

Think of it this way: When you are fixing SBEs with shntool or TLH, you are moving the track breaks to where they should have been placed had the original Big Wave File been tracked along sector boundary lines. In order to do this, shntool has to work with the entire Big Wave File just like CDwave had to do. It can't work with only bits and pieces of the Big Wave File.