The easiest, and I do mean the easiest way to make HST's that never come out wonky is the cut-down method created by Rhonda Woodsmall. You can find this method on her website...bitsnpiecesworkshop.com
Like many of you, I have stayed away from any pattern with HST until trying the cut-down method. Now my HST's are never wonky and my points always match. Try it for yourself...it's amazing!