the question is Hugh, what do you prefer, shinkes "uber puukko" or you "PFK"?
I've seen both in the flesh and Either would be up to any test the other would do.Both are sharp and comfortable to use.
You already answered that yourself. Its just a personal preference.
Any difference in performance would be automatically compensated for by a skillful user.
Its not the knife that counts but the way you use it.
Battoning with a knife is a survival technique for the under equiped, most would use an axe, billhook or camp knife and not what is possibly your most vital bit of kit.