Like ice cream cones in Phoenix, statistically none of 'em (planes) last too long. Run the least expensive big-brand (e.g., jr, spektrum, hi-tec,etc.) servos which meet the torque requirements and spend the time saved deliberating on which brand of beer to have babe. though not yet made the quantum leap to Gold (so I get I'm mincing) I run $15 JR Sports in my Silver sleds and succeed beautifully, like a drunken sailor, at augering them in way before any servo failure.