[Mike Hendricks]

At the very least, I would reccommend using one tank. It isn't going to add THAT much weight (as much as, say .. 4 tanks), and your cylinder movement is going to be much smoother.

As for 4 tanks vs the compressor, I would take the compressor and one tank. Depending on the application of course. If you're using this just to shift a pair of transmissions with a .75" bore 1" stroke piston .. then go with the tanks. If you're moving a 1.5" bore 18" stroke piston on an arm .. then maybe you should consider the compressor.

And the pressure switch needs to go before the main regulator. If it wasn't, you'd never get past 60psi, and the compressor would run until the relief blew. Not smart.