I placed the roof planes with a 12" rafter, just as a starting point. If I draw a truss, the profile is completely screwed up, because CA doesn't know what to do with what is essentially too small a heel height. So, yes, the heel height is controlled by the roof plane; the problem is that with a manually drawn roof plane, I can't go back and modify the heel height, say to 16", which is a realistic figure and will allow CA to draw a satisfactory truss profile. Modifying the rafter depth doesn't do anything - with a 8" pitch on my manual roof planes, CA always calculates a 10-3/4" heel, no matter what my rafter depth is (even if I enter 100', it still calculates a 10-3/4" heel). So, I was hoping somebody knows another method of controlling the heel for a manually drawn roof plane. Or, maybe someone can confirm that I'm screwed, instead.