If you want middle of the road, I suggest you stick with the stock LPR/Board settings and upgrade the bolt. TechT has a video on their site where they drop in the hush/kush bolts and velocity jumps 10fps. That will will allow you to lower your HPR a little increasing efficiency. Similar results could be found with a good boor to paint match as Idiot Box mentioned.
I recommend you stick with stock LPR and Board settings because in my humble opinion, you shouldn't fix what isn't broken. While you're most likely adjusting the LPR on a marker as broken in as an '08, why bother? You will see a negligible difference in performance, and the more you screw with, the more that can go wrong. The '08 truly was a great year for the Ego...
Originally Posted by Mr. Idiot Box
The Ego8 is arguably one of the best markers produced by PE for a reason. Leave it be and shoot the hell out of it.