Nope. You just tighten down the QR with one hand and pull the wheel back into the dropout/fork ends and grip down lightly on the QR lever. Once you have the desiered tension (and a centered wheel) you just grip harder on the QR to fully clamp the wheel.

Never had my rear wheel slip on my SS, EVER, when using a steel QR. Had one slip w/ a Salsa ti QR, but those don't have near the clamping force and the aluminum "teeth" don't really grip that well.

I grind up steep hills and never a whimper from the rear wheel..... I can hear my chain groaning, but no slippage.