I'm sure it has been mentioned before, but the adjusters are for fine tuning, but definitely not a replacement for shock valving to your needs.
I participated in the group buy months ago, and dont recall dsm
charging me for opting for 650# coils. they normally come with 600# coils, iirc. my fronts are extended length, I think because of the adjusters.
if I were you, I would definitely go the route of that thread, and get 6" kings up front, as you will gain slightly more travel. I think the ext length oem fronts come with a taller eyelet, but doesnt affect oem travel.
mo travel = mo better
fwiw, I like my 650# coils. Im all stock up front(no winch, plate bumper), and not running a sway bar either. I've got the passenger side collar all back out to combat the taco lean.