I ran foot throttles on all my machines over the last 10 years no problems with bounce if you stay wide open? only let off for the cornors until the last few years, I put another lever on the steering wheel to work with the foot brake, then pretty much never let off the foot throttle. Just apply brake to slow a little for the cornor, keeps everything loaded and the engine came back almost instantly.
But I am sure you will get more thoughts, it's all in what you get used to.