If the chalk last longer between chalking without loosing grip or performance then it will last much longer and the overall cost won't be as big a factor.
See thats what I found. People are talking about the chalk left on the cue ball.
I scuffed and shaped my tip before testing it. After a couple of weeks, I am chalking just about after every shot.
I don't think I should have to scuff more often using this chalk than I normally had to.
Also, I found that the chalk leaves a large divot of chalk on the cue ball.
You can wipe it off and its a fair amount.
If you chalk up and leave some on the cue, you can be sure of one thing,
that divot of chalk isn't on the end of your tip.
I don't mind chalking after every shot anyway.
I don't quite remember if Kamui ever made claims as to how many shots one can make with one chalk up or if it was just a claim made by players using it.
I like it just fine but don't feel that its much if any better than BD, Russian Magic or Pre Flag tho.
I can routinely miss as many shots per set with Kamui as I can with any other chalk. If I had any hair, it wouldn't be blowing in the wind.
I don't feel that one can say, "I can make 20 or 30 shots before another chalk up. The amount of times you should chalk is maybe determined by many different factors in any one game. If you feel safe doing 20 shots, cool, I don't.