Very different frames even though the specs are similar.The more I use my K-kraptor the more I miss my N6.1.2 weeks so far with the K and have'nt enjoyed a single session.It lacks power.N6.1's have power less control The k is all control.If you have used a Team 18x20 then you will know the feeling.Still undecided if I will stack my bag with k-kraptors.For now I will still try to adapt to the less pace.I'm at a cross road more pace or control.My k has 60lbs wilson reflection on it and it sucks.Less tension will make these frames shine.Demo it you will see.