Hatul
Contributor
I have about 200 dives on my Miflex hoses at this point, most of which are wreck penetration dives. Doubles rig, stage bottles, deco bottles - all hoses are still in perfect condition. (You can read my Miflex mini-review here: Miflex Hoses at www.DiveSeekers.com)
I do have a Miflex HP hose...but the jury is still out on that one. All the benefits that make Miflex great for an LP hose (thinner, more supple, slicker, flexible, etc) seem to actually make for a sub-optimal HP hose. If you don't clip off your gauge/console it will flop all over the place - even when pressurized - allowing it to damage environment, making it hard to find, and even creating more of an entanglement hazard. If you clip off gauge/console the hose can still get caught up in itself, other stuff, etc. It's so thin that with gloves on it's hard to distinguish the hose by feel from a d-ring, cord from a stage rigging kit, a clipped off goodie bag, etc. I've actually mistakenly clipped stage/deco bottles to the HP Miflex hose - its that thin that I couldn't feel difference vs d-ring and the snap on the stage rigging easily clipped on to it. (You can imagine the Charlie Foxtrot that would ensue doing a gas switch if you were clipped off thusly!)
For my HP hose I like standard rubber HP hose that "stands proud" when pressurized - easier to clip-off/un-clip, if not clipped it still sort of stays in one place/direction, etc.
I like the HP Miflex for my console with a retractor. I found it more comfortable to get one size longer than the old hose.
Adam