Very little difference with the exception of 3 !
I collect chalks and I have found very little difference with a lot of these chalks.
The few that stand out are G2, Toam, Magic Chalk!
Magic Chalk being the most conventional and G2 being the most insane amount of grip I have ever felt!
Toam Chalk is awesome and goes on light so the performance of your tip is really what is noticed here.*
Some chalks go on so thick, like heavy make-up, (Kamuii being one of them)
That you can have an awesome Zan or one of Dennis Searing's "Precision Tip" on your tip and the chalk is so caked on you may as well have a Mizerak Cue Tip Replacement on!
The toam really lets you know how good or bad your tip is!
G2 almost feels like rubber is gripping the ball! Awesome but tip placement is important, recommended for those who look at the cue ball last.
Magic Chalk is the best of the Blue Diamond, Master's, Predator type conventional chalks.
NOWADAYS CHALK DOES MAKE A DIFFERENCE!
All Chalks tested using Dennis Searing's "Precision Tips"