Update:

I have been flying my Modeltech 40 size SU-29 with the RCV-58CD and am well pleased. It almost fit inside the cowl without cutting an opening for the head. Actually the opening is beneficial for more airflow, and access to the glow plug and room for the exhaust would have required cutting the cowl anyway.

Power is more than adequate, although the ARF itself is lacking in strength and design. After all, it dates back to 1999 or so which is the earlier days of many companies' arf offerings.

Paben, what is your setup?