Well, originally built the two standard T-Rex's......One HDE, and one CDE. Then I sold the CDE Rex to a really cool guy from this forum who lives in Norway.

I switched the HDE tail servo over to the standard futaba one, and it has been fine since. It flies great with a rock steady tail.

Since then, I've upgraded the HDE frame to the Microheli CF CCPM frame, and made the following upgrades:

Neumotors 1107 motor
Parkflyer 6V BEC
Castle Creations Phoenix 35
JR 770 PCM receiver
Gorilla gear landing gear
3 HS-56s
Futaba 9650 on tail
Microheli Delrin CNC main gear
Microheli CNC front tail gear and CNC pulley
Microheli complete CNC head
Microheli complete pro tail
4S Maxamps 2200mah LiPo

So, I've upgraded that one just a little! hehe

But now, because of all of the old plastic parts left over from the HDE, I've begun bulding a another heli! It's a modified HDE. I bought the brand new Align HDE CF frame, that still has the mechanic pitch lever, but it's all CF and alum. The other components are going to be really cheap items; Telebee gyro, HS-55s, JR 700 PPM reciever, 450TH motor, Align 25A ESC, stuff like that. Since I spent so much money on the other one, I'm now scared to fly it just incase I break something. So this "new" built-from-parts heli will be my knock-around-heli! LOL

Trust me, I'm not looking for that much performance out of it, especially not with that crap gyro, but at least I can try some new moves without worrying about it so much, know what I mean?

So to answer your question, yes I have learned a lot......a whole lot in fact. :-)