Got a very limited time deal to get a new scope. Very nice deal. Background: I'm getting a new bang stick for Christmas (wifey said OK. Yeah, the honey-do's will be extensive.). The new scope will go on the new stick. I got a scope about 6 months ago for my other stick. Should I move the old scope between the 2 sticks as needed, or have a scope for each. Do I go for it and get the new scope while I can or do I wait and lose out on the savings and swap scopes between the 2 sticks?