if you have the manual, there is a section on fine tuning drift. there are pots on the 3-n-1 controller on the heli that can be adjusted to fine tune the heli. sounds like they might be off a little. i would center all trims on the tx and adjust the pots until there is hardly or no drift, then use the trims on the tx as needed. i have had two and this is the way i tweaked them to get them right. of course check your tracking and make sure nothings bent (flybar, main shafts, gears misaligned, screws loose ect, ect). these helis are extremely stable when adjusted properly. hope this helps a little....................td..



trex 450, trex 500, r50v2, stinger 90......still tryn2fly!!