Sorry Old Biscuit thought you were giving me a shot:
Its a 50/50 thing whether it will release the pressure or not and yes I would agree to neutral if you have a functioning parking brake. We are mostly seniors and possibly to sensitive to some responses. On tractor trailers we have spring brakes on tractor and trailer and do not have parking brakes on our fifth wheels. My observation has been more often than not movement when the release is pulled depending on the lay of the land on both type of vehicles. The point I was trying to make was that the release pulls easier with two hands than with one. No hard feelings intended