It's all about air flow...
You're going to find differing experiences with the new K good and middle and bad...this includes myself which, now 5 tries with it, I've had good, so-so, and a bad experience(s) with it...
I think it comes down to this...air flow...wind is enemy #1 for all fuel and the new K is somewhat less forgiving...it doesn't perform as well as the old K in open conditions...especially with a breeze...but when I used my wind/weatherscreen it performs very well...but those are conclusions from my own experience...so...ya just adjust!
If you have a less than air tight WSM...adjust...if it's breezy...adjust...simply adjust for the characteristics of the fuel you have on hand (K, lump charcoal, old shoes, whatever...
)...and the characteristics of your personal WSM...and you will not go wrong...
While the new K most cetainly isn't the wonderful old K...it's problems are a somewhat overblown...use what you prefer...and have on hand...that is reasonably priced...and ADJUST
...(try a quality lump sometime as well!
)...
Enjoy your Memorial Day folks...remember what it's all about!