any players ever used the Add Any Lot Size program from MTS?

There are no functional differences between Patches 1.66 and 1.67/69 other than the internal build numbers. Only Core Mods care about those, and there are only 6 of them in popular usage. This isn't one of them. If a mod works, or doesn't work, on any of the three patch levels, it will work or not work just the same on the others.

Never had a minute's worth of trouble with this mod, at least not since it stopped working entirely and then got updated for Patch 1.55 or something like that many years ago.