[Biff]

Making statements about one system over another with out considering what you need to get done is not helpfull. Attached is a basic spread sheet of air system componets weights are in oz's. Our teams first evalulation is if we need three devices, otherwise the mass requirements don't for us trade off. If you are using two or three speed transmissons that shift with air you at min need storage tanks to precharge. Storage tanks are almost 1 lb each, All things add up. Look at what you need to do and use a scale and a spread sheet to select the best and lightest way to do it.