The specific VED system is far less important than finding the right rings that work with your anatomy. All the pumps will do the same thing. Where the rubber meets the road (like the pun?) is with the constriction 'system' as they call it. There is no end to the opinions of battery vs manual and what form they take. look at all the ones at Vitalitymedical and you'll get an idea.
ED website for PCa guys
46 at Diagnosis.
Father died of Pca 4/07 at 86.
10/07 PSA 5.06 (Biopsy 11/07 1 of 12 with 8% involvment) (1mm)
Da Vinci surgery Jan 5, '08 at Mt. Sinai Hosp. NYC www.roboticoncology.com
Saved both nerve bundles.
Path Report: Stage T2cNxMx
Pad free on March 14 - (10 weeks.) Never a problem since.
ED - at one year, ED is fine with viagra.
Two year PSA - undetectable!