Polish Power,
If you're buying your first 'Andronov' style fin, and you don't know what you want and need, I suggest you visit some freedivers and test their equipment. Use your own training fin more and learn to know what you need. After you've done all this, and have a reasonable clear idea of what you want, than you can start thinking about ordering a fin.
By that time maybe someone else already bought a new one and you can have his 'old' one, that could safe you loads of cash too.
If you already know what you want, blade stiffness, angle, buoyancy, footpocket, than you would look for a company who can and will give you that fin. - Otherwise your chances of getting a fin that you like is VERY SLIM.
Footpocket sizing.
In my experience with "Hyperfins" is that they had my exact foot measurements, measured by their representative (at 3 places), and still succeeded in NOT delivering a footpocket that fitted well. TWICE. I wonder why so many companies cannot make footpockets that fit exact foot sizes? - I think it must really costs a lot of customers, mailing costs and time.
Not good for both the customer and the supplier.
That's why I'll advise to go for a company that succeeds in delivering not only a good build and design but also predictable, consistent, and well sized footpockets.
To everyone,
Please do not engage in fallacious (non-logical) arguments.
Fallacies
And please don't jump to conclusions about people's intentions, understanding that in an international forum most people are writing in a foreign language, and are not being able to understand and express themselves with precision.
Love, Courage and Water,
Kars