Phil 2 questions, what pad speed to use with a PC (older one not XP) and D300?

And if I don't have a compressor to blow out the MF pads at the moment what would you suggest to keep pads clean? Or is it possible to use 2 pads on one car and just wash them afterwards?

some sites are saying to clean the pads out after every section or panel you do, I'm wondering if i can get away with another method or just going through a pad for half the car and doing the other half with a fresh pad?