The upper limit is a rough guess, based on historical data for this gauge. If you have better beta, please add a comment.
As you come up to Hell's Teeth (aka the Pillars) you will see these 10-15 foot tall piers on River Left. Scout on either side though i prefer right.
Main line is river right moving hard left to drop to the left of the 'tooth' in the center of the flow. Large eddy on far right just above uppermost right pillar easy to hit at lower levels. Recently (summer 2019) something moved offering a tongue in at least low to medium flows as opposed to the previous drop into a diagonal wave coming off the tooth. Sneak route to left of right pillar runnable at all but low levels. From above this sneak looks like a 4' drop into a bad hole, but it's really a sloping drop into a small hole. Head straight over the furthest spot. There's also slightly straighter lines left but they've held wood in recent years. Portage on right.
Obviously any of these pillars could and have caught wood which can be below waterline. Without wood this is a pretty low consequence hard class 3 at lower levels to class 4 at higher levels with a nice pool below.
Rapid
N/A
Rapid
N/A
Hazard
II+
Rapid
III
Waterfall
II+
Hazard
III
Hazard
III
Rapid
II+
Rapid
III
Rapid
II
Rapid
II