Plans call for 14.3 degree bend on the spar aft caps. I exceeded this by .5 degrees, so I put it in the vice and banged it with a wood block and sledge hammer, which brought the angle to exactly 14.3 degrees. However, there is up of .5 degrees of twist at the bend and plan on correct it with my vice and a mandrel tool to "untwist" the twist. The mandrel is a 2 ft adjustable wrench.