You could have added a separate model with six vertices which you set passable and to the same angles as the given model, but you already got it working the other way. Good.
Aku_Aku, I didn't notice you being impatient before. Maybe, you need to relax a bit, because you don't read the posts closely! Whatever the reason is that you are under stress, I wish you that you get your task done!
Thanks Pappenheimer, you are a great member! I noticed too, last two weeks i become easily angry, i am impatience and so on... Stress, job and social problems. I try to handle that, with more or less success. Anyway it is my problem, but good to hear/read friendly words.