A good substitute for the cb-2000?

I picked up my cb-2000 back in ‘99, but it’s beginning to crack. Since I can’t find a replacement for that specific model anymore, I need to buy a new device.

Around 2004, I bought the Curve trying to work around some of the security problems I was having with the cb-2000 at the time. Unfortunately, it gave me severe edema—so bad that I couldn’t go back to the cb-2000 for another four or five years because my area would instantly swell up.

I experimented with the Curve by cutting it down so it could just hold the POI as a device, but whenever I put the rings on, I’d immediately start swelling. That device is also useless now and needs replacing too.

I’m considering getting the cb-6000, even though I worry the size might be too small; perhaps the diameter was what caused my initial issues.

Honestly, I’d really prefer a new cb-2000, but since that’s not possible, do you have any ideas for replacements with similar length and diameter to the cb-2000?

Thanks