Magazines such as that are rarely unbiased, regardless of the sport or topic, but more on the line of the 'advertiser bias' IMO.
I completely agree that these magazines are not truly unbiased, since theu survive based on advertising dollars. But this review was for once at least a vain attempt at a quantitative analysis. But I would guess that at least 90% of the information that you will find on these boards is purely opinion and bias. And I am not saying that I am not guilty of this as well, afterall this is a discussion board of opinions. Its the blind following of other opinions that gets to me, ecspecially when it is a completely unqualified opinion.
eg. "I have done 4 dives with SP Jets and love them"
well that's great that you like them, but what do you like about them? what have you compared them to? what conditions have you used them in? why do they work peticularly good for you? why is that you have such a strong opinion for them after a scant 4 dives? these are the questions that I and the OP would really like answered.
My reviews:
Jets and Rockets
expirience -approx 150 dives, mostly temperate to warm water
likes- short and stiff fin, this allowed good manueverability and backing
dislikes- surface swimming is terrible, strain on knees and calves, low top speed,
Jets foot pocket too small for me (13-14 wide foot), Rockets had much better size pocket for me.
Overall- not the fin for me
Apollo Bio v Atomic Split
expirience- about 50 dives with Atomic, about 5 with Bio Fin
likes- FAST fins, very comfortable to do many dives in a day with
dislikes- very LONG fins,
Atomics (clear with blue panels) had the panels start to fall out after about 1.5 years of on and off use in Hawaii,
Replaced with Bios, which felt similar enough that I don't seperate them from the Atomics, but sold them to a friend as was exclusively using my ForceFins at this point
Overall- Atomic- durability was terrible, but both fins were very enjoyable fins to dive and worked well for freediving, they don't scull as well as the other fins
Mares Black Tiger (no longer sold, but look similar to Volo)- well I am not going to really talk about these as they were terrible, they flexed completely away on downstroke and did not return to shape fast enough to provide any real thrust, back kick was stiff which strained my hamstrings. I didn't enjoy these at all and dumped them quickly. I don't know about the Volo, as I have never used them.
Quattro Power (full foot version of Avanti Quattro)-
expirience- ~30 dives, all warm Carribean waters
likes- great paddle fin, easy to manuever and had lots of speed, although I felt like I was working I felt like I was getting a lot out of it.
dislikes- cramping in my arches
ForceFins
expirience - over 200 dives, from warm (barefoot) to 37F, no drysuit expirience yet,
models used extensively: ForceFin Pro, Extra Force Tan Delta, SD-1 Military
Most expirience with Extra Force Tan Deltas
likes- very, very FAST and powerful, look cool as h#ll, adjustable mid dive for more or less power. Only fin that I have worked with that I can swim sideways with, making camera positioning much easier.
dislikes- for most recreational diving they are too much fin. I would not recommend this fin to most divers for this reason. as you really need to be a competetive swimmer to make this things really shine, stick with the Original Polyurethane if you go for the Extra Force.
FF Pros-
likes- great all around fin, seem floppy compared to Xtra Tan Deltas, but still provide enough speed and thrust to do everything that I have ever wanted
Dislikes- well, I can't think of any
SD-1 miltary
likes- easy kicking with lots of umph, very manueverable and pack flat. most comfortable fin I have used.
dislikes - again, haven't found anything I don't like