Holcomb Creek is a great trail. I ran it a few times when my Jeep was lifted 3" with 31" tires, no lockers and stock gears. I did have rock rails and skids plates though. You just need to pick godd lines and have a decent spotter in the rock gardens.
I would ove to coem up as that is one of my favorite trails, but I got too much stuff going on.
There will be a group of us going up in the middle of Oct (21st) and running several trails - Deep Creek, John Bull, Holcomb... I hope to post the details up next week.
Ya'll have fun this weekend.