Thanks MA.
I'm very familiar with Airfield Models - oh the skills that that guy has! There's always room for different opinions.
Maybe my problems with AR are a result of not having developed the necessary skills to keep the glued components square during the glue's setup time. I use the backside of ceiling acoustical tiles for my board. I don't like to thru-pin too many pieces of wood. I have a large number of 1/4" hard balsa squares (about 1"x1" square) that I pin down on both sides of an object to keep it square, similar to your use of 1" pieces of aluminum angle stock. I recently picked up a magnetic board and appliances at a local auction - EJL stuff - out of business. Seems that it will work with straight stock but I'm not sure how well it will handle a little "brut force cybernetics" to keep tweaked pieces in line.
Btw, I'm working up the courage to do a build thread - hey, why not open myself up to public scrutiny
Cheers,