GC - Momentum feat

Having Momentum inflicted on you still means you have gained it, just in a negative way... So the description of the feat isn't clear but I don't think it matters, I think there's something else in the mix as at stage 5 I got it from having a combination of Warrior and Chieftan (inflicted) Momentum counts but 6 upwards using Tuskens or Tuskens/Scion I got 150+ and it didn't count.