I am installing crown molding on my kitchen cabinets. I have no problem with the 90 angle (two 45 degree cuts), but i am having trouble with 3 other angles. They are all 135 degree inside (if that makes sense). I am using a compound miter saw, but can't seem to get the miter and bevel set correctly. I have already gone through 8' of scrap crown trying to figure it out.