I am looking for a good replacement for my Second Dimension, which finally died after about 8 years.  I found that with polish, it was great for the 3rd game of my first shift league.  Scuff with 4000, and it was great for games 1 and 2. 
So, what would give a similar range of usability both with and without polish? 

I've had both the second dimension and the eon and agree with 2handedrook12.  To be fair, it's been a while since my second dimension has been in my bag (maybe 4 years), so i have not thrown them side by side, but going off of my memory of all the time i had on the 2D I'd say the Eon is close and would be worth consideration.  Eon is a tad more imo, but my 2D was also getting pretty dead when i retired it.

Part of me thinks the idol pro might be similar as well with as clean and responsive as it seems.  I have not thrown one of those though, just an educated guess from watching videos.