Now this is getting interesting.
I have wondered about the setting "wet" vs "dry".
On my SU carbs I set dry so why not on bikes. Maybe difference in the float bowl volume.
If Kawasaki specs it, there MUST be a reason, not just to be a pain (which was my first thought upon reading this method).
My guess is that setting dry will get you close and you have to set wet to get it spot on, probably because of the volume in the float bowl (not much).
I paniced at JMKZH1's comment about how the boyancy of the floats changes over time, Umm Boyancy BLOODY WELL better NOT be changing over time, or all our floats will be sunk. Boyancy in a brass float should stay constant, unless you have a hole in it.
When I did my carbs I set mine dry and got lucky (dunno where I got my setting, I was following 3 different sets of info), I guess, now I have to go out and do the "wet" test... Darn, I was hoping not to have to do that...
Now that it's warmer, maybe I'll work on the bike this weekend.