To me, here's the bottom line: If you chalk before every shot, the type of chalk doesn't seem to make much difference. However, if you forget to chalk, or don't like to chalk often, or don't chalk effectively, and if you miscue often, then you might prefer one of the chalks that remains effective on the tip longer.
Thanks for your work dave.
I do think it's important to mention that you found a downside to the stickier chalk: That it stays on the cue ball longer (thus perhaps increasing the chance of a skid), and also that it throws more, so if you're unlucky enough that the CB-OB contact point is right on a chalk mark, you're likely to get a worse reaction.
Maybe you're (understandably) reluctant to be too critical of a product, but IMO the lesson is to avoid the sticky chalks and just make sure you chalk up enough.