So I've been riding a Class 2 (i.e w/throttle) for 4+ years, and I'm eyeing a much higher rig (i.e Moustache J-All, or Riese & Muller Homage 5), both Class 1 (i.e no throttle). I do love a throttle when I, or my knees, are tired. I can just stop pedaling for a while and still move. I could not...