Attila, I have had several Polkowski'd go through my hands. In fact, there is a Forum member who has most of my collection. Now that I have money again I am putting my collection back together.
I found the Companion to be the best carry piece for me. The Polecat was close, but the handle of the Companion allowed me to index the knife quicker. I have found almost all of Al's knives to excellent in reverse grip. I think the Polecat might be the best option for reverse. Based on the shape of the handle, it is very quick to get into the hand in reverse grip.
The Scorpion, this is one BAAAAD blade. It is in my opion the best knife he has going. The double edge, extra length and that bit of recurve to the blade make this one lively blade. Once you get one, you'll want it woth you all of the time.
Al is a very under priced maker. His prices are going up slowly and I know someone who is trying to convince him to raise them more. Get his knives while they are such a great value.
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Paranoia is only smart thinking
when everyone is out to get you.