To be precise, Refinements creates two copies of every thief kit (that doesn't receive penalties to its thieving abilities, so no dupes of bounty hunter and assassin) and of every warrior/cleric kit that can dualclass to thief. As such, the actual figure is strictly less than 3* (but an estimate of 2* is probably safe, since many kits aren't duped).
I don't know if
BG2 can actually support more than 255 kits (either natively or with ToBEX); even if it did, many mods would have troubles with that (they read and set kits using bytes, meaning that kits over the 255
th will be handled incorrectly, possibly with disastrous results).
All in all, you should consider some things things:
- The kits from
TDD tend to be of lower quality than kits from other mods (buggy and/or grossly over/under powered). On top of that, many of the
TDD kits have equivalents in other mods (that are likely to be better than the original).
- Even without Refinements halving the number of available kits, it's possible to run into issues before hitting the limit (especially regarding item unusabilities).
- Refinements, the
TDD kits and a bunch of other kit mods are included in
BWP Standard and I can't recall an instance of this actually breaking something, so it's likely that either the kit count doesn't overflow 255, or that it does and doesn't cause problems (of course, it's also possible that people have regularly problems and never notice them and/or report them and/or properly figure out the source).
- You can only have six people in your party, so you'll have an hard time trying to actually use the gazillon of kits you've installed