Well I ran the SK 50 today and it’s all good. The fuel is Power Master 15% nitro and 18% oil sport blend, prop APC 11X6. The top end is 12,000+ RPM and peak hit 12,300. The nice surprise is a rock solid idle at 2,000 RPM with quick spool-up to peak. I let it idle for three minutes or more several times and punched the throttle and it will run-up instantly without a cough or stutter. A three minute idle is more than I need; my down line is only about two minutes.
