nice one, watching with interest as I am flying a TWM Spot On Banana with a DLE 20.
The DLE is exhausting through a Weston Uk Aerobatic Mini pipe. Runs well enough but the Spot On needs a diet. The DLE seems to work best with the 16X8 oar in this application. Till my 17x6 Vess props arrive I am using these.

Planing on moving onto a larger 2x2 next year so looking around at possible engines and the Mintor 33 is looking promising. If OS claism for the GT 33 are borne out I may be swayed.