Geoge,
The mix gives similar starting (maybe slightly easier ) to std old english mix, ie 1/3 ether,1/3 kero, 1/3 castor, but delivers better power, I must admit not useing it in any R/C engines so throttling is not known, but due to the easy starting I cant see a problem , (slope sourer has reported better throttling with olive castor mixed lube on lower ether fuel)
I have run my mix in McCoy 049, Cox 049 reedy conversion, Barbini 1cc, Paw 09, Mk17 09, Paw 19, all hand start easy with no need for high ether prime, exhaust is almost clear in colour, compression is similar to old english -maybe backed off slightly , needle is a bit leener.
Stewart