Have 2 of them and love them both, looking for another

 

LMK

Chrispy

I know it's hard to match a current ball with one of your all-time favorites, but you could look into the Prodigy.  I took my Prodigy up to 1500 grit polished and had a very similar reaction to the 2nd Dimension.  But, if you really want another 2nd Dimension, they can obviously be had.

Here's a video I made of my Prodigy at 1500 grit polished if you want to see what kind of reaction I got.

 

 

Good luck!