I will suggest how you can save the gasoline it would cost to go to the flying field. Just put your model on the floor in your garage and jump up and down on it- the result will be the same. Do follow the mainstream advice and find a club with an instruction program.
That's pretty good, Daveand right on target.
I have found the best thing to clean areas for patching is to use the monocoate trim solvent. If you are using monocoate for the repair, then use caution when placing the patch as it will adhere immediately. If using Ultracoate, you can peel it off and re-position. I do not cut patches with sharp square corners. Circles work best, or squares/rectangles with rounded corners. They look better and don't peel up as easily. Oh, I always re-seal with an iron, even though the solvent will stick it down.