Hi @brufton
I have no experience with any other cage than the Dominix Delux steel one, I have been wearing it pretty much full time since getting it.
There are certainly “adjustments” you need to factor in -
Ring Burn - its a thing. The steel of the ring behind your balls can pull at the skin and create a burning sensation. This can be mildly discomfortable or quite painful. When it happens I usually adjust the skin back there, with either more or less skin through the ring and it settles down. This was more problematic in the first few weeks than it is now, but every now and then I still have to make the adjustment.
Forget standing to pee. Actually, I quite like sitting to pee now, its far more relaxing and there is no chance of a mess. Only time its mildly problematic is when you are out if there aren’t enough stalls or they are nasty.
As Modo says above, the measurement of the ring is important. The steel cage comes with only one ring, if its the right size then all well and good, but it could easily be too small (which would constrict your bloodflow to the testicles and be very harmful) or too loose (and then your balls would simply retract through the ring and the cage fall off).
The “wrap something flexible” can be as simple as a piece of string. Start at the top of your penis against your abdomen, then run the string (or whatever) around behind your testicles then back to the top. Make sure your balls are hanging naturally and that you aren’t aroused. Pull it taught but not tight, you shouldn’t feel like its squeezing. Do this a few times and different times of the day and under different conditions (just out of shower, morning, night etc). This will give you an idea as to what size ring you need (unless you are larger or smaller than average, the 1.75 will probably be okay, but you do need to check and be careful).
The size of your flacid penis is also important. If the cage is too long or too wide, when you become aroused, your erection will form more than if the cage was snuggly fitting (stopping it before starting or at an earlier stage), this can be more painful (creates tension on the base ring causing more ring burn plus the constricting feeling around your penis).
If you plan to try and sleep with it on, expect interrupted sleep. Nocturnal erections happen and with the cage, this will create ring burn and constriction as above. Its usually eased by simply going for a pee, but it can be offputting for some.
I don’t mean to come across as being negative on chastity, nor the device itself. I am locked 6 out of 7 nights and almost every day. I am really getting into the feeling of “constantly horny” and have been without orgasm for about 9 days now (longest period 15 days) and the feeling of freedon you get from giving up your own pleasure to focus on your partners is liberating. The “high” you get from a sex session where you may only get a glancing brush of your cage (or nothing at all) but your partner is left in complete sexual satisfaction is an awesome feeling (and nearly better than an orgasm, it lasts longer).
As I said before, the deluxe steel cage is the only one I have tried and I find it comfortable most of the time. I work in it, I’m at home in it, I play golf in it, I sleep in it and unless I’m unlocked by Mrs Sen, I have “sex” in it. It actually feels weird not having it on when I remove it for the one night of the week I have sport in which it would be hazardous to wear it.
Good luck with your search
but thinks I need a smaller cage