I agree. Just wondering. I spent $180 on my force fin pros 6 years ago when I first got certified. They're kinda like a high school sweetheart; been with them since day 1 but now I'm looking to see what else is out there lol. I've been able to do specialty kicks in them with enough precision, but they were too soft in currents. In places like Komodo and Galapagos where the currents can get pretty strong and dive guides force you to swim against them, I had no chance and always fell behind the group. I recently bought a drysuit (for local diving in northern CA) and my boots are going to be too big for my force fin pros, so I've been shopping for new fins.
I tried on jet fins yesterday in the pool with my new drysuit and as soon as I put them on, I thought - holy crap these are heavy. It made me value the comfort that my force fins give me. I don't know if I can deal with the traditional foot pocket type fins.
I did GUE fundamentals with Jets and with my DiveR freedive fins.....I ended up needing to use the Jets rather than the freediving fins, for hour after hour of reverse kick and hovering type practice....freedive fins get to be a pain for that...
Bottom line, Jets get picked by some tech divers, and many cave divers, because when you frog kick with them, they are a big solid blade that actually pushes you well for each frog kick cycle....and they have a large and accurate control surface for technical skills like what you want for hovering motionless for long periods of time, or for ease in reverse kicking.
However, Extra Force Fins, or excellerating force fins with whiskers, will blow away the relatively low tech Jet fins for advanced skills....and for a high current and fast paced flutter kick, or modified flutter kick for a narrow but silty area, or dolphin kick, or reverse kick, the Extra Force or Excellerating Force are far superior to the Jets....not even a contest....For pure frog kick, like along a cave bottom with lots of silt...or along a place like the muck bottom of the Blue Heron Bridge Marine Park...if you are going to Frog kick and RACE as fast as you can possibly Frog kick...the Jets are a bigger blade, and the slightly larger push per cycle can allow a racing frog kicker to go faster in jets--by a little bit..but a race is a race
..... However, modified flutter using the FF's would be faster in the 2 models of FF's I am discussing, than the jets, and equally non-silting....and full speed flutter in these Force fins would leave your evil twin wearing Jets so far behind you that after 3 or four minutes, you would probably be far out of sight. And, unlike with the jets, with the Force Fin models we are discussing, your quads don't get full of lactic acid....these fins allow maximum thrust your body is capable of sustaining, and they allow you to cycle power more like with gearing on a race bicycle....you can sustain very high speeds for a very long time. I can pretty much guarantee that with Extra Force Fins I could leave the DM's in Komodo or Galopogos so far behind in their currents, that they could not consider me in the same group dive with them....Part of this is the amazing technology of these fins, part of this is that I can do a sub hour 25 mile time trial on a race bicycle, or sprint to 35 mph.....Cycling power translates extremely well to Force Fins and to Freediving fin propulsion. ( also, unlike most racing cyclists, I concentrate on what we call "ankling" ....full range of motion in the pedal stroke, to better mimic the needs in diving--near the top of the pedal stoke my toes are pointing up, at the bottom of the pedal stroke toes are maximally pointed down).
Your above ground training really can become a large component of your favorite u/w sport