North Ridge 

It doesn't seem necessary to add to the vast route beta available in guide books but I will say that there is no more than 1 pitch of 5th class that starts out of a large notch 2/3 up the route. The crux is a brief two or three move layback corner before the climbing eases off to 3rd-4th class. The scenery is stunning.

Did this route today. Very fun climb, although it's mostly class 3/4. I love ridge climbs, the location you are in when climbing them is just so cool!

From other people's beta it seems there are 3 fifth class sections, but I could see how you would say only one, as they are all very easy. The first section of 5th class is right after the initial notch (down and left) and consists of a fairly low angle crack in a corner that is very secure (Some might call this 4th, felt low/mid fifth to me though). The "crux" is a short lieback crack, and it's no more than 5.5. There are numerous positive knobs on the face, which makes the lieback moves pretty easy. Just after the lieback there is an offwidth to the right that is described as 5.7 in the Secor book. I usually take the Dolphine at JTree as a benchmark for 5.7 OW and this was nowhere near as difficult as that. I think it was more like 5.3, as it was short, there were numerous features, and you could reach deep to get a solid handjam. Also, there are lots of variations possible, so it may be possible to make this climb harder or easier. There were definitely ways to avoid the offwidth.

On the descent make sure you pick the right gully. I picked the wrong one (I believe I descended too soon) and it started out as scree hell and then cliffed out. I spent a bunch of time figuring out a way to downclimb the cliffouts past other people's rap anchors since I didn't have a rope. The whole time storm clouds were building which made for an exciting end to the day! Supposedly if you go the right way it's just class 2 scree (no cliffs) the whole way down.

This route is presented by Croft as something to do when "the altitude is bugging you or you're too tired or hung over..." I completely disagree. We stayed almost entirely on the crest and there were many sections of 5th class climbing. The descent is also not straightforward. We met another party on their way out who had to bivy at 2AM due to problems finding the descent. This route is a big day, even if you short-cut around some of the towers.

21 hours on the move. This is a complex ridge, and much of the fun and adventure is not being able to see what's around the next corner and not really knowing where the hell you are. The going is reasonably easy if you're smart about your route choices. You can pretty easily keep it interesting and under 5.6 for pretty much the entire route if you're careful. Still, there's plenty of trip reports out there from people with experience who ended up having an epic on this ridge. YMMV.

I have posted a trip report with some decent info on finding the correct descent here, though you should definitely accept that there is no beta out there for this route that will serve you as well as (or substitute for) good judgement.

I followed cairns and a faint user trail down to the SW gully from the true summit, no route finding issues. If you start straight down after finishing the 5th class stuff then things might be different.