CB Range discussion

I picked up the CB6000 yesterday and spent most of the day figuring out the sizing, but I’ve run into a bit of a snag.

Am I perhaps too large for the CB6k? My measurements are 4 inches when completely soft and 7.5 inches fully erect. Getting it on is really tough unless I’m totally flaccid; this difficulty is mostly due to the ring (which is exactly what makes cock rings effective). It’s currently in place, but there seems to be a lot of skin bunched up near where the spacer sits.

A few questions: Should I upgrade to the curved version? The current rings are causing some trouble. The larger one allows my shaft to slip out too easily, while the one I’m wearing is squeezing my testicles quite tightly and it’s painful, though there’s no color change yet. Should I go up in size or stay put?

Does anyone have effective tips for getting soft? I’ve been trying to keep working my hands and feet to drain the blood, but it takes a while.