I've been really happy with my A272 tube; it's at least as comfortable as my old CB3000, and it's even more secure.
But naturally, we always wonder if there's something just a little bit better out there. I've noticed what looks like a Fort cage that's been cut and welded to fit the integrated lock cuff ring, which I might try just for the hell of it, even though I'm sure it will be heavy.
But I'm also looking at a Holy Trainer style cage, if only because so many people seem to like the way they fit. I found a shorter version in stainless steel that's inexpensive enough to try out. But I'm wondering if any of you HT aficionados have any input as to the ring size.
On the devices I linked above, I use the 45 mm ring (1.77") because it's the most comfortable and keeps the cage in place. But because the HT slips under the cuff ring, I wondered if there was a trick to figuring out what size to wear? The sizes listed say "about" 40, 45, and 50 mm - I'm assuming because the ring is not perfectly round. And I see that the unit is 300 grams (about 10 oz).
Any suggestions?