I just read a CNN report that the "ideal" screw lasts between 3 and 13 minutes! I was shocked! I've enjoyed "quickies" where both of us "let 'er rip" and intentionally try to do it as fast and as furious as possible! But then for a nice "afternoon delight" or a "Saturday Night Special" I can't imagine less than 20 minutes! The same report says that horny young guys, and older middle aged guys can't keep it up past the 13 minute limit anyway! Do all of you out there agree with this? I have my doubts!