Got to hit the new 98 and 100. The 98 is an evolution of current EZone 98, it is still has a firm crisp response however the sweet-spot is has a more plush response. Still has a firmer upper hoop, but not as firm as the current EZone 98. The EZone 98 was my frame of choice for a while, I feel the new one is better overall and an improvement.
I can't gel with the 100, but I do think the new one is also better than the EZone 100 it will be replacing. Felt more comfortable overall, just a better response, not as stiff feeling, but still much firmer than the 98.
Overall, I would say the changes provide a nice feedback, you really know when you hit the sweet-spot, and when you miss it you don't really get a sharp drop off in power. I actually appreciated that about the EZone 98, so the new one is in the same vein, but nicer overall response. I actually hit the new 98 and the Ezone 98 side by side when I tried them, and as much as I liked the EZone 98, if I was still using it I would definitely switch to the new one.
Also, the shape of the head is rounder and I think more forgiving, larger sweet spot.
The frames I tried were strung with PTP 1.25 @ 52. So if you string lower, the new 98 would feel even sweeter.