So far I have used the gloves on 4 dives.
I decided to really put them through its paces before I gave a review.
I really wanted to test out the dexterity of the gloves so I wore them while setting up my gear. For the most part I didn't notice I had the gloves on. I could buckle, clip, strap, turn on my air, don my gear, adjust my gear, and remove my gear. One big issue that I found during the process was when I would clip something I was continuously getting the glove's webbing caught in the clips. On the surface this isn't a big deal but under water it can be really bad.
While diving, normally I dive with my arms crossed and use my fins for turning and propulsion. On the first dive with the Darkfin gloves I dove the way I normally do but used my hands only when I needed to make slight adjustments. This worked great, you can really make turns with little effort. On a 60min dive at 30’ I used about 1800psi.
My second and third dives I used the gloves as an addition to propulsion, i.e. using my legs and arms to propel myself. Of course I couldn’t keep this up for very long and could only dive like this for short bursts until I could get my breathing back under control. By the end of each 45min dives I was exhausted and I used up 2100psi.
On the last dive with the Darkfin Gloves I went back to my normal diving and used the gloves only when I needed to make slight adjustments. This dive was about 45min and I used about 1500psi.
For simple adjustments the gloves are great and if you are using them for that purpose they’re great. I see them being great for photography but I do not recommend these gloves to divers that think they can get around faster or if they don’t have at least decent buoyancy control.
As to their construction they are pretty tough but I may have worked them to hard. On the left glove (I’m right handed) the webbing is beginning to separate from main part in between the thumb and first finger.
Thanks for a well thought out review and for taking the time to seriously evaluate Darkfins from a "time under water vs. gas used" standpoint. So far this is the closest thing to actual DATA I've have gotten.
Just a couple of questions.
First, In what way did you use the gloves to aid your fins in foward propulsion? in other words, what position were your hands in and what sort of motion (method)did you use?
Second, Were you intentionally trying to go faster than you normally would have simply to test the increase in propulsion that the gloves claim to give? Or were you simply finning with the gloves as an accent to your fins and cruising at normal swim speeds?
Some divers, after seeing the latest video we released from Weeki wachi springs, Got the impression that our intent for this glove was to make you swim faster while diving. While we claim that by design, Darkfins CAN enable you to move through the water faster, make faster turns and fast reverse motions, we don't suggest you do so unless for some reason you need to.
I'm glad to hear from most, that Darkfins are great for fine trim adjustments an micro manuevers. If in fact you were using Darkfins to actually go faster then I can see the dramatic increase in gas use. This could be compared to a car using more fuel driving at 70 miles per hr instead of 60 miles per hour. To go faster in any case will require more fuel and the only benifits of the increase in speed is you get where your going faster. I realize however that unless your a navy seal or something that your objective is to stay under as long as you can and enjoy the dive.
That said, I've noticed that when treading water your only objective is to keep your head above water. How fast you do it isn't important. When using Darkfins to tread water I get about a 1 to 3 ratio (1 stroke w/Gloves vs. 3 strokes w/o gloves) in number of strokes it takes to stay up.
Now let's assume for a minute that you are going to swim (dive) 100 yards out to a reef. In normal diving form at a normal speed without Darkfins, you reach your desination in 10 min. On the next day you swim to the same destination under the exact same conditions except this time you use the gloves in addition to your fins and intentionally worked your legs a little less. I'm GUESSING you would there in the same amount of time. I wonder if you would have used the same amount of gas? And would your legs be less tired?
Are you still awake out there?
This kind of stuff makes me crazy!
But thanks for the review