I just wanted to take a sec to praise Hobby Services for doing a good job. They replaced my balky O.S. 70 Ultimate (Yeah...Ultimate POS... ) with a brand new .91II fourstroker, no fuss no muss. They even sent the replacement motor Next Day Air . Thanks, Tim.
I guess now this engine can go on the one of the best engines out there list.
On the serious side , I'm just curious to know what problems were you having with the engine ?