Has anyone tried one of these and what do you think?

Mine has a Wilson brake and A2 stock. I can't see any reason for a non functioning tele stock. One that works is bad enough from a shooting perspective IMO, why tolerate one that does'nt? All in all the Bushy is high quality, accurate, reliable, well supported and reasonably priced! I can't ask for more.

I have one, the LE "Patrolman's Carbine" with the new style collapsing stock, and A2 Flash suppressor.  I love it.  Have our AR qual at the end of the month, so will be able to start using it.  I do like the new style stock a little better than the CAR style.  It just seems to fit me better.  I see Oly has the same style now in an aluminum stock.  For South Dakota, I think I would prefer the fiberite.  Don't need frozen bits of cheek stuck to the stock.  [heavy]