Always do a serious job in <u>every</u> detail when building/assembling.
Don`t rely on cheap China gadgets. Quality lasts.
Always check airframes, batteries etc when you come home from a day at the airfield. Fix things at once.
Set rudder throws to suit what you prefer.
Never balance at "recommended" CG and go on flying if it don t suit your flying style. Tweak!
Never rely on decalage, especially on cheap ARFs. Measure, and correct if not good. Same with thrust angles.

Get a <u>really good </u>TX. The TX is the tool you control your models from. A really good TX is one you get used to and never have any doubt how you program or where the switches are placed. A lot of memory and battery time is a must. You only need ONE good TX.