My jacket keeps riding up in kneelers and being a target jacket and thick leather it could give me an advantage if it got under the stock. It's something that I constantly try to stop happening but as it's under the rifle I can't see it. Had a thought... archery arm guards. Are they stiff enough to flatten a jacket down? They can't add to stiffness because your forearm is bone and pretty stiff on it's own. Just thought this might save me getting a zip put into the jacket.