Wow. I only saw the ignition version listed on their website yesterday. I might be interested in getting one. I only worked with one when they came out originally, and after helping another club member set his up to a 13200 top end and 2000 rpm idle, , found out he was turning an 11-7 prop. Most people I know only use that size on good .60s. Then, a few months later, when he got back from wintering in Florida, the engine was a little better broken in, and his flying buddies in Fla. had gotten him to add a little oil to his fuel, and had readjusted it to 13,600 top. .60 power in a package that matches the Fox .45 footprint.

And other club members were telling him to dump Fox because they don't have power.

I see other people in the club having to rebuild other engines almost yearly, while those of us who use Fox just run for years without doing much other than replacing a bent or broken needle or props, and used up glow plugs. And the Diesel conversion will eliminate the glow plugs.