I'm sure the answer is 'of course' but just thought I'd check.
My (warm-water only) dive setup has evolved over the years to its current configuration: Backplate and wing, single piece harness, RK3s and by-the-book D-ring placement. I'm still learning and certainly not Tec (or even leaning in that direction), but the thought process that goes into these types of setups really resonates with me, helped me better understand my setup and the effect that the BP&W/weight distribution had on my trim in the water, when compared to my past travel, jacket-style BCDs is amazing.
I'm still using a short hose setup and have no problems with it. All of my other hoses (LP and reg/octo) happen to be Miflex, not for any other reason than that's what my regs and wing came with, they look nice and coil up easily and compact for travel.
One of the tweaks I want to make to my setup is to move from the current traditional SPG with a big, heavy rubber boot. The hose is slightly too short and the rubber boot is very big so a good excuse for a change. I've had this properly attached with cord on the hose to a large boltsnap attached to the left-hand hip D-ring - just like InnerspaceExplorers/DiversReady/SafeDiving told me to.
I've noticed that a lot of divers use a simple, bare, brass SPG mounted in the same way I have (boltsnap tied just below the gauge) and plan on getting such a gauge from my local dive shop - while there I'll have them fit a hose of the right length. But I wondered if I could use a Miflex hose for this SPG too? It'd be nice if it matched the rest of my hoses, but don't want to do this if there's a reason why an SPG must have a rubber hose instead of the braided Miflex-type - so thought I'd check here.
PS: Just by way of example, the sort of SPG I'm looking at is : https://www.hollis.com/product/2inch-pressure-gauge/?v=79cba1185463. And the Miflex hose I'm looking at is their Carbon HD High Pressure version - https://www.simplyscuba.com/Miflex-Carbon-HD-High-Pressure-Hose/ss58229102.htm?colour=Carbon.
I'll shop around but think I can get the pair for under £100, which I'm happy with. So it technically seems possible - just making sure there's no significant issue with this set-up.