Nice conversion! Not sure what type firgelli you have, operated by (RX or esc) but if your on a self centering stick or 3 postion switch with the "R" version (RX) you can grab a camera positioning module to hold the actuator at any place in the stroke. Could help with flow control out of the dump.
http://dionysusdesign.com/product_in...770688ee6e224e