RE: Procedure fo maiden flight?
I usually keep the gear down (just in case), get it trimmed out, do some stalls at a reasonable altitude (just to see how she reacts, dips a wing, whatever), fly around at half throttle, try a loop and a roll, and then shoot a landing. I try to have a spotter write down or remember anything I ask him to such as "plane corkscrews to the right in a loop" just to remind me after.
PS. don't forget to take note of the time and the fuel remaining after landing to get an idea of how long is too long.