I am currently running a Simjet 2300(Todd's old engine from his roo), 1200 and a 700. I bought the 2300 and the 1200 used, but bought the 700 new.

All three engines have been working great. I too had an issue with a fuel pump on the 1200. They used to have a flightworks 100 pump but have swithced to the flightworks 200. No problems since.

The throttle response time and fuel economy are very good.

I go to the field to fly and dont give the engines much thought as they always start and run fine.

My 2300 and 1200 both have the Simjet D2 ECU, the 700 has the FADEC.