I have a Park Commercial style like the one I use at the shop and a Trek Wrench Force. The commercial stays put (it's like a 100lbs.) and I use the Wrench force outside or on the road. I hate when stands wiggle around and for a so-called portable style, the Wrench Force does an awesome job. Plus it adjust up real high which is a plus for XL bikes. A good test to see if the stand is quality is to mount the bike inthe clamp and tuen it so it lookslike a vertical wheelie. If the head doesn't spin, your good. Also put a bike in the hardest gear and pedal the snot out of it..... see how bad the stand vibrates when compared to others.