I think tackiness chop 2 is better than tackiness chop. Tackiness chop 2 is better to make a sharp chop and also to make a spiny serve. Chopping far from table and counterattacking heavy spin are also very suitable with this rubber. Very recommended rubber for modern defender.
Very easy to make a flatter but spinnier chop compared to tack chop 1 which the ball shall fly upward and dip to the table, either with 1.1 or even 1.9 mm sponge.
More control than the original, but may be because i tried it on Butterfly Defense Alpha, a very soft blade.
A very good defensive rubber. Pushes and chops are really heavy. Looping is also good but quite slow, especially compared to modern tensor-like rubbers. I'd say this rubber is too slow for modern defense but excellent for classical defense.
As an allround player, i put 1.9 on for FH, after an Off rubber on my FH it seems quite slow but effective i have more control and my FH chops are effective as my BH. Only negative point is i have to swing my arm wide; when i want to produce fast/medium-fast counter spin.