Ha ha. I've always had a mental bet with myself - every time one of these "best fin" threads comes up, how long until the Force Fin posse and Dan Volker show up?
Kind of like how the BP/W folks chime in (or used to, anyway) on every "what about this BC" thread. Anyway, all ribbing aside:
Janet laughs at me and calls me the Imelda Marcos of fins. My stable of fins is up to 11 pairs now (
hello, my name is James, and I have a problem) and I've come to believe there is no single perfect fin, just fins with specific optimized goals. ...And when something is optimized for a specific task(s), then other parameters go lacking.
Having been through the lightweight-travel-fin dilemma, here's some things I've found out by trying out fins:
Force Fins: you either love them or hate them. You'll have to try them to find out, our shop has a loaner pair that I use periodically (because they are not in my closet). They are pretty light for a pair, IIRC the ones in the shop are 2.8 lbs for a pair.
Hollis F2: I haven't personally used this exact fin, but I
have used the
APS Manta Ray (black), which as far as I can see is the identical fin. After a weekend of diving I decided that there was far more power for the weight available in other fins, and so the APS Manta Ray did not go into my specially built fin closet. The ones I tried were 3.2 lbs IIRC, so nice and light too, but what do you expect for such floppy construction.
US Divers Hot Shots, I had high hopes for these.. They're very lightweight (only 5 ounces heavier than the Force Fins), and suited my eye - short, stiff, stubby.
After trying a pair I sadly passed on them too (inefficient in the frog kick), but I heartily recommend them for people who primarily flutter kick and travel a lot. This fin has possibly the very best foot pocket in the industry that has to be tried to be believed.
The
Dive-Rite EXP performs nicely for a plastic blade fin, but was heavier than I expected... I found myself willing to just pack the extra 10 ounces for Jets, or bring Quattros (which were easier to "sprint" in for me) at the same weight.
DiveR (spelling?) fins, with my opening tongue-in-cheek comment aside, I haven't had a chance to dive these. However I
do own 3 different pairs of freediving fins, and use them all; they never travel with me unless I am doing dedicated freediving. And lord knows I've tried using them for scuba diving, they just don't have the in-close fine control I want. If all I did was travel in a straight line, yes, I'd take them, but I spend most of the dive hovering and pirouetting and backing up and I'd rather have those characteristics.
Two days ago I was helping a friend with fin choices, she's looking for a paddle fin that was less heavy than Jets. Our shop had just gotten in a couple pairs of the
new version of Turtles from XS Scuba, new enough that I hadn't seen these before. They have printing on them that says "XS Scuba Turtles", and feel like a different blend of monoprene or something...anyway...the XL's that she was trying were lightweight enough that they left an impression in my mind of "wow, that's
really light!". And on her they looked like they were just as crisp as regular Jets. I will be definitely trying these out soon, much to Janet's dismay I'm sure, and a possible closet expansion.
Right now I just pay the penalty of extra weight to bring fins that do exactly what I want for the type of diving we're traveling to. Just like having a mask that doesn't fit right, having fins that aren't right for the job makes the dive miserable. Find a fin that dives the way you want it to, and just drag the weight along.
And for the love of god, try before you buy!
All the best, James
edit: having re-read your OP, if truly, all you want is straight-line speed to push into current, then I'd have to agree with Dan and push you into a freediving fin, like maybe some Cressi Gara 2000 HF's or something, which is a great-performing fin without the issues of dealing with carbon fiber. Be honest with yourself though, and look at what you really do on a dive, and optimise for that.