24mm deployments? um... don't know, but don't really think so.
and skinny both ways, also, and mostly, in thickness, not just width.
they can only be about 2 to 2.4mm thick usually to get through the deployment.
deployments will affect the shape getting distorted as well. it's not quite a
straight shot for the strap. so it's not really a cure for the issue you speak of.
but deployments are popular I think, or at least partly so. just not with me, lol.
I see them being sold on a bunch of gen pams, so people must like them I'd assume.
chances of getting a 5mm strap in a deployment are slim. you're describing a
buckled strap with those dimensions. and the v shape vs. oval, well that has a lot
to do with the lengths of the short and long strap. if the short strap, that the
buckle is attached to, is long enough, it'll curve around the bottom of your wrist,
so the buckle doesn't sit really at the bottom, it sits off to the side some.
and yes, there are some thick straps that were made with stiff material that are very
hard to bend and shape properly. I don't really like that at all. I've chosen, for my
own homemade straps, to usually use a 3 layer design. all 3 layers are supple, but
most importantly the middle 'meat' material is super flexible. the bottom is a thin
patent type of leather, smooth, soft, durable, thin. and the top changes, I'm on an
exotic kick right now. so sueded shark, sueded gator, stingray, ostrich leg, toad, etc.
looks like your best bet is to get one of each. wear them both, and decide which
direction is best. get a deployment one, and a buckled one. there's a pretty big
difference I think between the two setups. maybe a starter strap of each kind, like
in the correct dimensions, but maybe not super high end, just something to get
the feel. then once you know exactly what you like, then you can invest in something
you'll really love to put on.