I agree with your post in all respects, Brewtoo. Especially with not needlessly converting to 134a from the far better performer R12.

I've always thought that we need real speed limit signs with actual enforcement. The highway near my house has a posted limit of 65, but you don't get a ticket by blowing by a trooper at 78. Have the signs say 80, and mean 80. But especially with speeding laws, this will never happen. Selective enforcement brings the cash in.