I have a mental erection for green parts (Which george hates) i ride trials because i love the sport and enjoy riding my bike. If they go out and buy a comp bike and snap it in two weeks then its their problem. I have been told many times (george again) that i shouldnt get carbon bars and such because learning on a hevier bike will make me a better rider overall. Buy what you like or build it how you like. Andy Ball side hopped to rear every bike on the recent ride, including my mates Onza Bird, AKA Concrete.
If i were you, ild buy parts to suit your style more, not to make it lighter.
Thats my opinion.