Taxing with doors open
I will taxi with the doors open about 2-3 inches. I typically will start the engine with the doors closed, put my headset on and open it up and hold it open a few inches. You get 90% of the effect that way. I just don't trust those hinges and feel that after time they will fatigue and fail. I have seen many people do it though.
Just like Dan mentioned, I would be fearful of blast from another plane or a big gust of wind that might crack the fiberglass. I almost lost my doors in Houston one day when I pulled up to a hanger (just for a second) and left my doors open and an Apache came taxing right by me. Luckily there were other pilots around that were closer to my plane, ran over and held them closed for me. That saved me a bunch of money and time.
I've had some bad experiences to with my rudder being blown around, shearing my rudder stops and cosmetically damaging parts of the skins. The RV-10 is a great plane but it is no Cirrus when it comes to it's robustness.
There have been multiple accounts of the rudder stops shearing. I would replace the rivets with screws on the stops if you have your rudder off sometime.
When I pull in to stop, even for a second, I put my rudder lock in, put my seatbelt around the stick, and close my doors.
That is probably more than you asked for, but my point is that Van did not build a plane to maximize structural strength but one that is very efficient, light, and high useful load. Most people come from other 4-place planes like Cherokee's, 182's, and Cirrus's and it is very obvious that the RV-10 is not built as "rent-friendly" as the before mentioned.
