Winterization: wet or dry?

I gave up on the wet method. It was always a pain to get the valves set for bypassing the heater. With the dry method drain all water first and then I hook up the air compressor and let it fill the entire system with pressurized air (40 PSI). I tirn o one faucet at a time until it stops spitting and then go to the next. After doing this once I then do it a second time and pour a llittle pink stuff dow the traps. Don't forget the toilet and hose for rinsing the toilet. The outside shower should be the last to get done. It has worked for me on the last 3 MHs.