i just did some ledger paper cutting comparisons. my m2k is definitely the sharpest knife i own. there are some close contenders. i was surprised when my tenacious outcut the ukpk, navigator 2, and dragonfly. they have never been sharpened, though. the rat1 folder also beat them. those knives have been sharpened, though. the dallara, shockingly, also beat them, and it was never sharpened. the top folders were my often used and sharpened vic adventurer and pioneer.

ranking:

<<Glides through, no resistance, no tears>>
1. M2K
2. Adventurer
3. Pioneer
4. Tenacious
5. Rat 1
6. Dallara Drop Point
7. Leek
8. Subcom folder
<<Cuts respectably, may tear some>>

after that, resistance from the paper to my hand is felt and i really have to focus to avoid tearing. I'm going to touch up the edges on the knives i think should have ranked higher, then do it again.