Hi John, I think you are right. These stations were from way back at 1.3 and they will have trouble keeping up with the newer versions. I used to use them as well from 2004 but gave them up around TS12, maybe sooner. I do recall a fix for the GS file in TS12 but that escapes me now as to what the fix was. There were about 5 triggers on each platform for train length and this was the issue eventually. The new AI cannot decide where the train should stop or if it should stop at all. One issue you may remember was where the train would slow down - and then speed up and stop leaving maybe one coach still on the platform?
My advice would be to follow your suggestion and replace these stations for something newer.
Doug