This is the current WR for Heavy Shreddin'. It actually beats the current TAS by a few seconds (at least until my TAS is approved soon).

Sub 17:20 is probably possible: ~1s time loss in Blackout-Moguls 1 Can probably save ~0.3s in Harikari-Moguls 3 with better routing at the end, and better drift staggering in Harikari-Backwood 6