Went at the early bit quite hard and was in danger of blowing up, and then came out of the trees and onto a long straight of 5% but daunting - must have been 1 or more km. That was sapping, but by time got to the steeper bits in the bend of the Horseshoe was back on top and the last bit was probably 3%
Turned left immediately after the famous Ponderossa cafe onto a really poor road of gravel and potholes. Couldn't enjoy the descent as just waiting for a brake cable (brakes full on) to snap. Spectacular views.
Back via another rise and twisty descent and then a river valley ride back. Next day had stiff legs - so a training stimulus achieved!