You didn't mention what size profile you were flying, or your level of skill. I think you'll find that the more experienced 3D pilots like to use digital servos for one reason-blinding speed. I also think you'll find that most of them learned to fly 3D on something with standard servos that were much slower. There's a huge difference in speed between standard servos and something like the 9252's that you mentioned. There's also a huge difference in price. I really like the Futaba 3004's for all of my 4 lb. profiles, and I've never stripped one or had one fail. They've got ball bearings, nice centering, and good enough speed for a beginner to intermediate 3D pilot. I've used Hitec 55's, 81's, and 85's on throttle as well as a couple of 3004's. 4.8V is a good battery choice, I always use something in the 700-800 mah size. I use one of the Maxx products switches with the charging port, makes it easy to check battery voltage between flights without having to remove any hatch covers.

As George E mentioned, lower cost=lower pucker factor=more fun when learning 3D.