Anyone else have trouble with this stem? When I got it around five or six months ago it was ok. But the clamping sucked ass on the steer tube. So I didn't want to stretch it, but then it would slip every session. So I gave it a bit more, more slipping, more torque, and it kept going. So it's pinched now, and I think my steer tube is ovalized too. It's slipping bad now. Would the ovalized steer tube affect the new stem/cause stretching in the new stem? Since I imagine you would have to tighten it down more to accommodate to the slight oval shape.