I have a velocity problem. When outside in humidity I often have a issue that random notes will blurt out many times louder than others. If I use a non velocity patch, such as an organ, its OK. When back inside away from humidity the problem, in time, goes away. This makes it an almost impossible problem to solve, as if I take it to a repair shop it would work fine. As a panic workaround, is there any way to turn velocity (touch sensitivity) off universally across the board? Thanks