I'll try and explain it again for you..... 

When the line is travelling faster at the stripper guide than at the tip the line bunches up, and loops around guides/blank. Seeing as how the insert material in KW  guides is the same as used in other guides it will have the same drag co-efficient.  The only difference is the forward slanted guide feet are less prone to collecting the loops that accumulate when wind casts develop, therefore any wind cast developed loops slid forward off the guide....

I also have rods with KW guides, sorry but a sample of 2 isnt representive enough for me to be sold, and it flies in the face of the actual physics of wind knots.

I did say

"K guides dont eliminate the effect, they only reduce the likelyhood of the line snagging"

no sound on this but interesting....none the less.