first of i used to want a good shaft drive car i mean i loved my tl-01 then when i had the $$ i upgraded at first i was like u ft tc4 or hara pro 4 but when i talked to racers the leaned away from shaft drive cars as they can chip pinion teethc especially with a one way and also they dont like the snap that comes with the shaft but the snap is what some racers love. i ended up with a second hand mi2 and i havnt broke it which is amazing considering i spend more time being marshaled then racing.
really you will either love it or hate it my self will oneday probably buy a shaft car just to compare but in classes like mod and 19t it seems u cant go past beltsbut in stock some people swear shafts are more efficent therefore faster.
bottom line if your a great driver u will notice the difference between to competition cars but if your new like my self get whats cheap and other people run that way u have support and cheap parts
maybe in a few seasons ull know what car suits u? im still decideing.