To correct traction rolling, try more negative camber, reduce your ride height, and also try using tires which are a bit less grippy. Or you can try to put all your electronics on the lower deck of the chassis.
Any radio that feels good to your hand is a good radio.
I have a Futaba 3PDF and I can't complain anything about it. it's light and it got every function that I'm looking for. So It's a good radio for me.
A lot of people are going for Airtronics M8 cuz it's a great radio too. It really depends on your own prefrence.
I have weird prefrence when comes to RC. I go for everything Japanese. ESC: Keyence. Radio: Futaba, Car: Tamiya, Servo: Futaba..... Even though they are not all made in Japan. But for some reason I just go for Japanese product most of time....
Damn...I got my TA-03F used and there's this 17 tooth pinion there...I changed it to 19 to pick up more top end speed...so changing it from 14 to 19...will u consider that as an over gearing? Is this bad for my motor? Anyways I still use the stock Jonhson that came with it...
zxt: it's ok if you change it to 19t... i use to run my johnson stock with 21t pinion...it runs ok...eric of ritchie ritz recommends 25t for maximum top end but i settled for the 21t for more runtime...now with the tamiya superstocks i'm using 22t (0.6) pinion.