Theres one thing certain in life bud....if you dont ask you dont know. Even older fellas like myself and im sure all the guys on here that go looking for permission get the knock back. Ive certainly had many doors closed on me. But when you get your first permission you'll be glad you made the effort. Just be respectful outgoing and be prepared to answer a few questions they might throw your way......stuff your using, how often you coming, all sorts ....treat it like an interview and you cant go far wrong......and first impressions count.....good luck.