For simplicity, I used the exact phrasing of the question asked...without complicating the answer for the poster.

2008 stock vs 2011-ish cssu and turbo ....
"newer" , "just fix some issues and add opt. " vs "more modern"

Poh-tae-toes ...Poh-tah-toes

2011 being "more modern" ..."more recent"..."newer" ....than stock ...
..is all the same verbiage in the end.

It is a dispute of similarity ..
and of course you are completely correct auouymous.

Past all that.
taspts
-It is highly suggested to do do a fresh flash of stock,
-then ONLY install xterm and console tools v1 (for ease of use.)
-then copy the fresh install to card with console tools.
-then on the card ...on your copy of the stock diablo ..install cssu, diablo turbo , telescope and a few others ..
-then install whatever you desire as well on said card..
-then using console tools make a backup and tuck it away on a hard drive somewhere...