Think twice before you send any thing to Barry for service, when he got it in his hands, you have to pay him $50 inspection fee, and $25 shipping charge doesen't matter new or use, under warranty or not, even the part still in original wrapping all required inspection by Barry.
If you have a broken turbine, turbine that crash or even your turbine that sit for few months in your model and when you take it out to fly and could'nt get it to run, he'll call you and offer you trade in for new turbine and give you couple hundred dollar credit, if you don't accept his offer, send him a check for $75 and he'll ship your turbine back, don't even hope he will fix it for you!!!!!
That's the way Kingtech operates.