Wonderful! Glad you got it! Yes that headliner is thick. I needed to completely debur the plastic and carefully pull shaft of the pot with pliers while only threading the nut on gently about 2-3 threads. Good catch on wiring change.
Yup mine is like that with low load. Ref levels are ok, even weighed in new charge. Found if I pointed dash vents up and not just straight out and left it on dash only no floor and outside fresh air it cycled much less.
Just installed that amazon board yesterday. Works good. Factory switch works as normal. While in off position and key on, turn knob on wiper control and delay is now active from 3-30 seconds. Turn on factory switch and wiper resumes normal speed.