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I used a RunCam2 mounted on top of the vertical stab with a small piece of sheet metal between the top and the rudder. I'll post a picture later of the actual installation.
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What surprised me, and now that I've had a few days to think about it - it shouldn't have, is the massive amount of turbulence caused by the canopy.
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The worst effect of all that turbulence is simply wasted energy. Energy that comes from your batteries or glow fuel. That's why modern airliners don't have canopies sticking up into the airstream . . . perhaps Boeing and Airbus possibly know something that our pattern plane designers don't?
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The second negative effect of all that turbulence is what it does to the control surfaces. All that turbulent (and thus randomized) air is hitting the vertical and horizontal stab, and is also affecting the rudder and elevator. Kinda like trying to steer a canoe down a whitewater rapids. However, you can see that the nose of the airplane doesn't hunt around at all, so I imagine that the top part of the vertical stab / rudder are still in smooth air and able to steer the airplane.
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So . . . . like wheel pants, what purpose does the canopy on a pattern airplane serve other than "It will look weird and you won't get good scores without it"?