There are two different serrations out there. There are the machine cut ones like on the spine of the NARK and then there are hand cut ones like on the Flying Tiger, Flying Badger and 1st version of the ARK. I have no experience using the ones on the NARK, but I think it is nice that they are on seperate parts of the knife instead on sharing space on the main cutting edge. That being said the hand cut serrations that are found on the original ARK, eventhough they share space on the main cutting edge, are far superior (IMHO) to other patterns of machine cut serrations I have had experience with (Mainly Spyderco, not knocking them mind you). I have found that they actually worked very well and are super sharp little monsters of cutting power. One day I will have a NARK and I will give the machine cut serrations a try, but I wish it were an upgrade option from the custom shop to get a NARK with the hand cut serrations rather than the machine cut.