I was messing around with my jointer making some practice spars and found that when I had planed it down to size it was 1/16 shorter at one end over a 4' length. Because of the bevel there is no way to turn it after each pass. Any advice on technique? The jointer is a 6" rigid set up as best I can according to instructions. I want to make sure I have my technique nailed down before I tackle a real spar.