I pump pretty close to daily, often a bit in the morning and a bit in the evening. I hard clamp sometimes during the day - about three 10 minute sets per day. I stretch a bit by hand just to maintain, because I find sometimes it doesn't want to stretch out as long when it's fatigued from all the girth work, but a little stretching usually solves the problem.
I want to be at least 8.5x6.25 permanently, no pumping or clamping needed. I'd be able to quickly pump myself to 6.5+, as my wife sometimes likes, but I'd also be able to fuck her a bit "smaller" at only 6.25" girth when she is a little less excited by size. It's tough to call it "overboard" until I go over about 7" girth, though, because although her favorite is about 6.25-6.5, it doesn't really become "too much" until about 7.25.
I would love to see myself hit the 9" BP mark, but that might be a bit too much for my wife. She seems to enjoy a bit over 8 inches sometimes, the full 8.5 other times, but I'm pretty much always bottoming out on her and she only likes light cervix taps, not full-blown banging the thing. 9" would pretty much just be purely ego-driven for me, because I'd love to say I have a 9x7 inch cock lol