I'd also like to know if "drastically different" means harsher in this case. I'm looking at going with a new set of Destination A/Ts for my mostly street driven XJ.
In regards to the rest of this thread, a few years ago I replaced the stock shocks with Monroe Sensa-tracs. They were the most recommended shocks by far for your average, mostly street driven, XJ. My handling improved, but the bumps.... oh gawd the bumps. Suddenly things I could plow across before felt like hitting brick walls. It just seems to be the front end. The rear seems fine.