Thsnks Radial,
I'm planning on running morgan fuels Omega 15% witch is 50-50 synth-castor. the only reason I dont go full synth (cool power) is I started using omega15% in all my engines about 4-5 years ago and it is so consistant from jug to jug I never have to retune a motor when one runs dry, I only retune for ambient temp changes. I follow the method described by dons hobby (lean to peak and back off 2-3 clicks) and I seldom have any trouble. usually the glow plug gets weak from old age and hard running

Im putting this on an autogyro go to flyingbalsa.com and check out the pt.25. So a cowl is not an issue, besides this way i can show it off!

Your vidieo is encouraging. sounds like she idles& transisions well! smokes like you got her plenty rich!
thanks again!