I have a KS i950 Dropzone with remote. I've had it 3 yrs., super reliable. It was $255, I think. I love it--it lowers your CG and allows the bike to move more under you. I use it all the time descending. I even drop it on flat fire road sweepers for more speed and control. So what it weighs 8 oz more than a std. post? It hasn't hurt my climbing and my descending is much faster. Lastly, you want one with remote, not a lever you have to reach under the seat for!