Mike

I have no experience of the Simjet but the Supersport is a superb turbine. Mine is giving 19lbs thrust and the spool up from cruise to full power is less than 2 seconds.

I aso have the 44 and a 54mk3 which I built from the kit so you can see I am a Wren devotee. The service is unbeatable I would not hesitate to reccommend them. The kit 54Mk3 is probably the best value on the market, it only takes about four hours to screw together.

John