Not a short cut as such, but after a few visits have worked out a less painful approach to climbing.
Basically the first climb from the trail centre to the where you join the fire road is a pig, very steep & almost unrideable for some. whereas once you reach the fire road, it’s a gentle slog, and not actually too draining.
So once you’ve reached the top for the first time take for example, wibbly wobbly back down until you reach the fire road, hang a right & ride the easier bit back to the top – repeat using any of the descents down to the fire road until lunchtime & then perhaps pick something like vicious valley to go all the way down. That way you get the best of the descents with the least hard climbing. I follow the same pattern after lunch, with of course the chance of getting on the uplift.