I have used nothing but Spring Air and I am not about to change. The feature that is the selling point for me is the positive down lock on loss of air pressure. All you need to do is land a nice scale plane with the gears not locked down and you become a believer real fast. I use the 3/16 inch struts as the only knock about Spring Air is the 5/32 wires seem to bend a little easier than they should. Another up side is less plumbing in the plane, so less chance for a leak. Good Luck, Dave.