I think Moki/Mark engines could again recapture a lot of the market back...if they get with the program and re-design there engine for gas use by at least adding needle bearings and more cooling fins. Also a RCexcell CD ignition would be good to have included with the engine also. Another thing is if a big company like Tower Hobbies would sell them and have parts on hand that would help bring the Moki/Mark engines back. Just my 2 cents! Capt,n