I have several pdf's I'm using as my test. Some load to the server fine, and the others are shifted back by 1 hour, so winscp thinks it has to update those files every time a sync is preformed. This problem happens when using BOTH "adjust remote to local conventions" and "adjust remote timestamp with DST".
The timestamps are display correctly, as in, they show the timestamp the local / remote machine's explorer's display so the problem is that winscp is shifting the timestamp back 1 hr for SOME of the files that I'm moving. I've read about this problem but there is no "fix" on winscp faq's or other support info.