I'm genuinely confused by your description. Z2 is probably the most catapulty rubber around, it is very bouncy and speedy.
But you said the Telson is "dead" on bounce.
In what way are they similar?
Forgive me, I need to clarify what I meant 🙂
The Telson 100 only felt dead *at first* - ie: during the very first simple bounce test I conducted on it. I wasn't trying to bounce the ball very high at the time, just about 15 to 20 cm or so. It was just your most ball basic control exercise of bouncing a ball on the blade repeatedly, palm up on the FH side, to feel the springiness of the rubber.
During that initial bounce test, I just couldn't feel much catapult effect at all. It didn't feel like the linear bounce of something like a Mark V or Focus 3 either... it felt like something was preventing the ball from bouncing. When you first do a bounce test on an ultra tacky rubber, the tackbis so high it stops the ball flying off the rubber, and you really need to add force to the bounce to stop it sticking... Well this rubber felt like that at first, despite it being a non-tacky top sheet.
I actually had to touch the rubber with my fingertips to test the tackiness, to see if that was the problem. The rubber was mildly sticky, but nowhere near tacky enough to impede the bounce and make the rubber feel dead... The rubber was just unresponsive to gentle impacts.
The second I tried to bounce the ball higher however, the ball sunk more deeply into the sponge, and *then* I could feel some catapult.
I'm just not used to catapult / tensor style rubbers having a low gear ... Most of the super bouncy rubbers I've tried feel bouncy no matter how soft the impact. With this rubber however the low slow push-like impacts I created weren't strong enough to extract any catapult speed from it... Like I said, there was no bounce and it felt very 'dead'. Once the impact of each bounce went deeper into the rubber however, the rubber responded with that familiar 'ball-launch' feeling of a regular tensor rubber.
This tells me that the top sheet is either made of multiple elastomers, or maybe it has different densities to it, and the top sheet is probably a harder on the uppermost surface than it is a little further down.
It's almost like the force from shallow soft bounces don't reach the softer springy rubber below, and instead the impact is absorbed by slightly denser rubber on the surface -- that way you get less bounce during your short game, and your pushes don't spring up high or go long so easily... But then once you start hitting a bit harder, the impact forces start reaching the softer, deeper, springier rubber layers below the surface, and the rubber starts coming alive.