Dallas
Earlier this summer I did an experiment with a similar plane, a Hyperion .46 size extra. Like the PA Extra it is one of the new generation of thin wing 3D RC planes that fly so very well and seem to be very resistant to stall and since in RC 3D we fly them considerably slower than in CL PA I wanted to see if the longer fuse and the other factors made them useable. I powered with an Axi 2826/12 electric. I have a fair amount of experience with electric in RC and CL so it was a natural. The power system was more than up to the task. No issues there. Hyperion is another of the upper quality arfs out there and weight while not quite as light as the Precision Aerobatics planes is very close. (I have already done a Precision Aerobatics Katana-mini coversion and just finished build of RC Katana MD and have the Extra MX next on the RC board so I am familiar with the weights and construction.) I used a Morris bellcrank, and multiple pushrod control system with seperate horns for each flap.
Tests were conducted on 63 ft lines. Probably did a dozen flights in the series with another expereinced electric stunt flier, Rick Sawick, and Frank Carlisle. We all three did the trim adjustments and evaluation flights including video for review to confirm what we thought we were seeing. In short the experiment did not succeed. Even at the higher CL speeds we encountered wing stall in corners that was not correctable with the wing. The Precision Arobatics planes have similar airfoils and moments and I would expect the same. As I said it was an experiment not an attempt to create a world beater. Your milage may vary but hope this helps your evaluation or the concept.
bob branch