I got a zefal2 reversible pump that I can't figure out. It has a valve attachment coming off the side of the end, and a pic showing how to change it apparently from schraeder to pesta (though the pic seems to have it coming out the end not the side), but fine... But there's no way to lock the valve attachment to the tire's valve except by holding it under constant pressure, which strikes me as unlikely to be the intended thing (since it pushes the valve into the rim, so you'd have to hold the valve stem, the pump end, and the pump handle to pump, total 3 hands. Am I missing a piece (but if so, I don't see how it would attach to the pump), or a hand? -- Ron Hardin [email protected] On the internet, nobody knows you're a jerk.