I regularly use FLS. On its piano roll, it is possible to alter note velocity which is handy for me as I have no keyboard, just use the pc keyboard. Many applications, such as Keys or Oatmeal, work very well to respond to velocity when I alter note velocity on the piano roll. However, this has no effect on Z3TA+2 or Sylenth 1. I have studied the manuals on both, but find no real info for such a basic requirement. Response to velocity is paramount for leads. Does anyone else find velocity problems on certain synthes and, if so, which ones?