hi all, im new to the rc world and just absorbing all i can atm...i have a hpi throphy 3.5 version 1 thats standard except for a 2.4ghz receiver with built in failsafe and a stick controller both by etronix, and ive changed the normal AA battery pack to rechargable. Im now looking to upgrade some more beyond the standard first step....i do beleive it has had new knuckles atleast too. but apart from tht all seems to be standard. what should my next upgrade be...i am looking at getting onto a track soon too thats local to me. should i be looking at possibly uprating my arms etc ? i dont want to be spending to much but anything listed wont go unchecked and ponderd on though , i will get some pics up shortly of my car if that helps possibly tomorrow thank you.