I have been trying to implement games wherein the xp expenditures are in line with the current sourcebooks. As such, purchasing "Natural Aptitude/Gunnery" is supposed to cost 500 xp. While this is a character trait, it is listed as a PSA that can be purchased. There are other PSAs that do cost more than the 100 xp cap that can be set in the options. Weapon Specialist and Sniper are each supposed to cost 150 for example. You can find the costs starting on page 219 in A Time of War for the PSAs. And where the traits have been included, you can find those costs on page 107 (cost = TP*100). Thank you guys for the great work you do.
Sorry, I realized one line might not be clear in what I was trying to say. The sentence "While this is a character trait..." Should be changed to "While this is a character trait, it is listed as a PSA that can be purchased in Mekhq".
The limits have been relaxed to 10000 XP in v0.3.26