so whats the update on this?

i think you will end up doing another switch. im a mechanic and i got a hunch that your reverse switch which is sticking is inside your transaxle tied up to the reverse idler gear.
so if this is the case, are u willing to take apart your transaxle and change the switch?
or maybe take it to a shop and get charge god knows how much or just buy the nicest switch (carbon fiber) and just do the dew.