Not new, they keep changing the course each year. We did that climb over Canning Dam in 2013 and also the previous year I think. It just depends on the conditions stipulated by Dept of Water on the day. Same goes for Wungong. We've been able to ride over it every year except for last year.
Too many gels was right. I had an upset stomach for half the day due to only having energy drinks from Wungong through until the southern freeway water station. Refilled with plain water there and was fine after that.