The Ralph Cunningham (RCIGN1-RCU here on RCU) converted to EI G62 would be expecially nice and is the engine I plan to put in my WH composite Sukhoi. I also have one in a 28% WH Extra but have not flown it yet because I'm mid stream in a move to Utah. I have about 6 of his engines and they run extremely well and are much lighter than the stock version.