I have never heard of a T2 or any CCM hammer lugs wearing out.
My personal T2 is one of the brindle camo T2s that I bought at LL2 and I have thrown I don't know how many cases of paint through that gun. It still has the same hammer in it.
The only part I have replaced on it was my trigger (on my second one - I am that hard on my autotrigger). When the trigger gets a divot in it, it can cause a few issues in regards to timing.
Again phone up Rod and talk to him. He knows those guns inside and out and can help you get your gun shooting amazing.
"I shoot pump because it hurts more feelings." -- ryantuomi (heard at Living Legends 2)
"Not everybody understands English... but everyone understands stick" - Big Sexy Medic
"Pumping is about as much a disadvantage for me as shifting is for a Nascar driver" - Ralanti (in an email between ryantuomi, ralanti and I about playing pump) Thunder Bay Pump Club Dementia Paintball MCB Feedback