Bingo. Modpack specific issues should be directed at the modpack Devs. I've never had issues with TiC Tools beyond the fact that they are insanely good(usually much more so then the cost would imply).
Well, that, and that TiC Shortbows are crap since you can't get infinity and even though the arrows can be recovered 100% of the time, that 100% of the time assumes that they aren't, say, in lava or in the void, or any other sort of "yeah, you ain't gettin' that back" location. Which means that the 100% of the time assumes a fight occurs only on the overworld far away from any fluids.