In my opinion the scramble from ranked 13,248 to unranked 13,373 was the crux of the Halo Ridge Route. It wasn't difficult - just tedious non-stop boulder hopping. There were a few towers along the ridge which I bypassed on the left and the climb up 13,373 was pretty steep but manageable - pretty solid stuff. It is worth noting that there were a significant number of spiders and webs but they were avoidable. Bicentennial peak 13,768 pokes up just right of 13,373 and Centennial peak 13,831 is on the right.