I have 2 of these, I havent taken them actually "ice" diving but pretty close in terms of water temp. with no problems to report, I did note in comparison to my Scuba Pro reg. that the 2nd stage feels a little "heavier" in your mouth and also with some regulators you have a large volume of air released when you depress the purge, with the Proton it is a smaller "burst" of air, I imagine as part of their stratagy towards cold water problems. I n all I do like them and intend on trying them in warmer water soon!
The Trans pac II w/Rec Wing bladder, Great for all types of dives from shallow reefs to deep wreck penetrations to drift diving...the key is its system of being able to add on or remove various devices as needed for particular dives.
the hi flow sea cureII do just that...its very comforable in your mouth and stay right where you place it, and has a large bore where it connets to the regallowing a lot of air if you need it
This sealed reg has anice feel to it and breaths nicely along withthe lower intermediate pressure to the 2nd stsge it seems half of the pressure that i have gotten used to on my scubapro. on the mares proton when you release air by purge the air is released relativity slow do to the lower intermediate pressure then other regs...like my scubapro set which is great with a lot of intermediatepressure at your secondary reg. I understand that they use a type of by-pass system to help hoid open the diaphram longer & easier
I really like the Trans-pac harness, it has the ability to change from a lght weight travel rig set up for light diving, All the way to a dual cylinder tec mission...it has plenty of D rings for all your gear attachments and many more add on bags, kits tool holders, etc. the trans-Pac with the REC WING bladder is a nice in between BCD with plenty of lift (up to 59 lbs good enough for a tec dive Mark
This bag while called a 2 regulator bag could probably hold 4...it is about the limit of a carry on luggage piece, but it is padded and has a nice sized tool/spare parts side pouch, it will indeed hold 2 reg. sets but trying to secure them with the 2 onboard "stretchy cords" it took a little thought to hold my 2 regs tight enough to make me comfortable ((I am a little obsessive-compulsive...especially about my dive gear) All in all... the bag is a nice addition to your dive luggage with extra room for ther items, i.e., gauges, computer, etc.
These softwoven lightweight clothes have a feirce thirst for liquids, one wipe or pat dry and the water is gone instant dry almost, the you hang the micrfiber out to air dry and it too is dry in a very short time frame