Ok, I just followed "Soloboss's" guide step by step and let me tell you it worked wonders! perfect Im so into my heli again, the trim issues are so discouraging. and drilling holes in the 4-1 did seem to help. Once again hats off to you eat2muchrice. cexshun follow it, at least 3-6 and it will get you a nice set up heli. The issues you experienced were all on my list too. Let me know how it works for you!