I believe we have Pass Thru Width on the list of things to eventually implement.
We'll definitely be taking a look at the math for the sliders for the next update. It's got something to do with the scaling function we're currently using. Early on it used to be easy to get through all of the values, but this resulted in it being difficult to actually get to 0 and 127 (since the very top and very bottom spaces are so tiny). We figured it's important to be able to easily get the sliders to hit and stay at 0 and 127, so we increased the space for those zones. So we then needed to scale the range between to 1-126 — this math is where the problem is occurring.
2, 3, 5, 13, 89, 233, 1597, 28657, 514229, 433494437, 2971215073