You don't need it if you've had a remap, or if you don't want to be able to dial in the throttle response to suit you. But me, personally, having gone an extra couple of inches wider on the rear tyres, appreciate the ability to tweak the throttle opening up a bit. Why do Abbey, Horsham, uprev tuners on the whole bother to pepp up the throttle response during the uprev remap if it's a totally worthless placebo?
Couple of inches, mmmm:
Thats an 11.5J ET -10 wheel on the back there, and the tyres last on average about 1500 miles at the moment, throttle controller not required
Fair play to you though, each to their own but like I say, it reduces throttle control which can only be a bad thing as far as Im concerned - the point of a remap is that it can be adjusted to suit what youre after, and I wouldnt be after a more savage throttle myself after rocking the controller for a while