Man have you come to the right place. I highly recommend that you spend a lot of time searching and reading the experiences of members specifically with the SBL and with Marlins in general in the 45/70 forum as well as the Marlin Rant forum. There is a lot of valuable information there and I guarantee that it will be time well spent.
BTW, welcome aboard and remember the only dumb question is the question you don't ask.
BTW, welcome aboard and remember the only dumb question is the question you don't ask.