I'm pretty sure you would be a lot happier with a bathmate in all honesty. Air pumping just plain doesn't compare to water pumping. Air is just not as good of a medium as water for it.
air pumping is really outdated. The new way of pumping with water is what is really bringing tremendous gains too many men. The bathmate line of pumps are superior to anything else on the market. X 30 and the X 40 both kick ass the only thing better is the extreme version. bath make is awesome support all Matters of Size clients and have an unbelievable warranty of 5 years.