Well Andy and I, made a bit of a trade,Here`s his offerings .Thank you Andy..I asked him ,if I could add some tests, to My Chart I had made a Week, or 2 ago ,and, he liked the Idea,I got his permisson.My goal, is ,not to sell his idea to anyone,just to inform my RCU pals, of what I`m finding for myself..I`m not sure, when, I`ll start doing,this testing, but ,most likely early next week..Unfortunately I don`t have a temp. reading apparatus.But I do have a Hobbico tach,and ,that is a common device amongst us.Reasonablely priced, for those considering, a Hand held optic Tach..My first round of testing, will be, with my near new, Norvel BigMig 0.061" R/C engine..I already have data Charted started ,so, I`ll just add to it..I`m going to use Sig Champ fuel @ 25% Nitro, with 20% oil content,of that ,50% is Castor oil,& the other 50%,is Klotz synthetic oil.I have a new Bottle here,never opened..I won`t re-test what`s on the chart now, because that info ,is all obtained, on a New, Factory Glow plug insert..To keep things a bit simpler,I`m going to use the Engines Spec. sheet Propellor.It claims That the Average performance is 4,500-18,500 RPMs, on ,a TORNADO 6"X3" propellor..I have Several other Props that were not Tested(just got`em)..I have no test data on The APC stuff,so a 6"X3" of there`s ,will get tested too..Anyone have a prop, that they would like, to suggest to see the results too?As far as the Glow heads go, I`ll be useing a Cox Factory(NEW) glow head,Andys modified Cox Glow head, ,and the modified Norvel insert (0.061") ,.For the O.S. ,Turbo glow plugs.I wanted to try all 4 of O.S.s` offerings, but at their prices ,[X(]I only purchased the P-6 med.,&,P-7 Hot plug.Those 2 turbo Plugs, will be Exchanged ,between The Cox Head ,and,the Norvel insert..So is their anything, I`m missing, that folks want to see me do.I`m going to put my Test Chart here,and a few other pics..see if something grabs Ya..A Couple Cox 0.049" engines, and, a fairly new BigMig 0.074" ,will get their turns Bolted to the Table, after this is taken care of.. In around about way,I know Injunnut will be intrested ,with the Cox testing..thats`s later though