KDOG, see this thread, the thread that you just recently posted in that you apparently have been following, http://www.candlepowerforums.com/vb/showthread.php?t=152464&page=2&pp=30
go to post 32, and 33 and click on link in 33 to see that U2 is boost only, I found this thread by going to Google search, CPF only at top of each CPF page. I put in Seoul + U2. Amazing what can be found by searching.
Yeah, I found that thread after I posted the opening post here. Apparently, 2x123s' will fry the Seoul. Bummer. I don't see any mention of having to raise the emitter though.
I was also wondering if there was any new info regarding this issue.