I really freaked out two days ago, since the hanging-pad-thing made my push unplayable.
I had some theories about what causes this issue... could be:
1) dust between the upper plastic case and the rubber-layer with the pads
2) dust inside the push between the pressure-sensor and the pads
3) initial deformation of the rubber which causes stress on the sensor, since there is no gap between these parts.
So I unscrewed every piece of this beast, cleaned everything and made my little research:
I noticed no dirt at all, but the sensor-layer kind of stuck together with the rubber-part.
Since the PCB was manufactured in fall 2012 it saw quite some temperature-differences (summer was really hot in my little studio-whatever). After rebuilding the issue was GONE!
... might have been 3) in my case: inner stress because of the nature from this rubber.
I will update, if there is any change, but now it works like a charm, my pad-sensitivity is -15!
If you wanna do this with your Push, please be aware of 2 things, that might cause trouble:
1) the sensor layer is glued at the PCB at two points, don't break this!
2) while building together, make sure, that all rubber parts fit perfectly in the plastic case, otherwise you will have small unnoticed gaps between pads and sensors, which can cause some trouble too (I made my experience
)Have a nice day!
