Only A few of our group tried it, then a few more did it with the bypass. They all made it, a few hard bang on the front bumpers, but all in all no problems...
Cozdude
JKMadness
Veetz
maybe one or two more but i can't remember the names.
Alan30 did the bypass in his stock JKUR which was pretty impressive if you ask me...
bl17z90 did the bypass too