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"

Mate is this happening on first cast straight after a fresh respool? What can happen is over time with casting and retreiving, you are moving the rod to fast and winding in sloppy line. What happens then is say the top 50m of braid is really soft on the spool then when you go to cast the line is tight as heck when rod is loaded. The tight line then drags the "not-tight" line with it causing knots and all kinds of caose. What you can do is check the hardness of the spooling after say every 20 cast by squeezing the braid. If starting to feel soft just light flick lure out let it take all sloppy line and then simply wind the lure back onto spool (dont sweep). This will give you tight braid again on spool. 

I cast with 2 wraps of 130lb varivas on the spool of our saltigas with ah jb hollow 100lb and never have an issue. 

But worth a look see anyway mate.