Bob our elevation here is 2,100 ft, I don't have any noticeable engine performance issues, engines are tuned to 7500 RPM with the proper prop, I never max out the rated RPM's of my gas engines, they will last longer. I really like the DLE engines, have 3 so far, 55,35 and 20 cc. Sounds like you have a nice field to fly at with some history behind it, we have the nicest field for miles around, it is a RC made site with a 30' wide 540' long paved runway and 40 covered pits, it's really nice, there is plenty of grass and a diagonal strip for some of those dead sticks.
You are not the only one trying to get perfect hinge alignment useing the hinge points, thats all I use. I take the leading and trailing control parts cut to the plans and T-pin them together, mark hinge location and drill them on the drill press with a brad point bit after which a 3/16" dowel is inserted dry. If you have two identical say ailerons drill one hole a 1/4" off from the other and they can not be put on the wrong side or upside down. Dowels are also used to aid in sanding surfaces flat to one another for perfect fits during final assembly. I hope you sand the burnt wood on the laser cut parts off some to get a better glue bond, there is a fine film of unstuck burned wood ash on them and should be removed.
Your work looks pretty good, AMR makes you think a bit as all things are not laid out completly, they give you options to do it your way. Part of the mans building style I think, we all have our own to some degree.
Ideas for drilling the hinge holes that really work.
Later,
Leroy
