I've got a PM8, and where I have got a short myth reg on by bottle I need to have me ASA at the very back so that my bottle doesn't rub on the back of my grip frame. My problem is that, because the screw that holds the ASA in place is in the center of the grip frame, it only pushes down on the front of the ASA which means it still wobbles no matter how tight i screw it on. I currently have my old vanguard creed ASA on it, but I've got a dye UL ASA on its way.
I noticed that there looks like there are two other screw holes that can be used to hold the ASA, but the back one would be the only one that is helpful obviously. But I don't know how I could use this screw hole as it doesn't come out on the inside of the grip frame.
Sorry if this isn't very clear, but any suggestions will be helpful.