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Dave,

Thanks. My experience is similar regarding the weight, but experiencing better power output with slight improved RPM, throttle response, and lower noise, which I believe is coming from lighter weight and firmer tip. Good to know that PT has similar performance.

Kevin
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Kevin,

The one additional bit - as the electrics have grown in power (and RPM), APC has started to gradually "beef" up the E props (much stiffer torsionally). The 20x13E and 21x14E have been beefed, and they will turn more RPM at reduced noise levels (just as the CF props) compared to the original E prop. Throttle response is certainly better with lighter props, but that isn't really a concern (for me at least) with pattern style flying. I've also run the RASA 20.5x14 CF vs the APC 20.5x14, and they are indistinguishable (on my plane and logger), save the 1 oz weight difference.

Regards,