Lock up at last, even if it's only a few hours

I arrived home from a work trip Thursday afternoon. Well so did my new CB2K + KSD-G2.
I've been playing with the fitting ever since. At about 1:30 this afternoon, I thought I had it right. It lasted about 4 hours before my little guy shrunk & receded to the point where he slipped right out of the CB2K + KSD-G2. I'm on the middle a ring & middle KSD. When I put a tighter KSD on, I can't pee. So I'm now trying a different approach. I lowered the spacer size to where it's still feeling o.k. but i certainly notice my balls a little more. So far, so good. But in my zealous fitting, I really scraped up and bruised my dick. Still have the CB on, now over 8 hours, counting the readjustment time. But I think i'll be taking it off to sleep & heal. In the meantime, does anyone have suggestions for keeping my dick inside the cage, instead of shrinking into my body & out of the cage?

It's such a sexual turnon to be locked down. As great as it is, It would be even better if I hadn't scraped up the little guy. Though he seems to have a mind of his own. He's already oozing a bit of precum. He must think the added lubrication will help him free his imprisonment.

My wife has been great, letting me size the CB and fit it. She looks at the balls and comments accordingly, telling when my balls look too veiny or blue. She's not really into it yet but I'm hopeful. Last night she said that her being in control was a turn-on, not the other parts but the control is certainly. However today she said I didn't have to be locked up all the time. I guess it's a slow but HAPPY process on all fronts.