I have an issue with my arrows with blazer vanes getting black marks on the right lower vane (cock vane up) when nocked on string. I'm guessing it's either hitting my riser, whisker biscuit housing, or one of my cables. I've heard of a powder test to rub on the areas of concern and see where the arrow hits, but what powder do I use and is it a spray on or what? Never done this before so any help is great. I'm trying not to go the lipstick route just to save myself from going home with lipstick on my face, neck, or pant zipper (after using bathroom) and having to answer some tough questions from my wife.