I'm a Hensley owner too. Love the hitch. Works awesome when you're within the specs. It connected my 2008 Yukon XL Denali to my 7200 lb Keystone Bullet. My Denali had nearly 1600 lbs of payload capacity. With 900# on the hitch ball, 200# for the Hensley, 2 adults at 300# total, 3 small children (another 100#), car seats, and few odds-n-ends, we ran out of payload.
With the Sequoia's, payload capacity is significantly less. Don't know how you stayed under your SUV's limitations?
We moved up to a 3/4 ton truck as it offered the required payload for my Hensley and the toys the kids want to bring along. Again, the Hensley is a great hitch but it will not increase capacities (GAWR, Payload, GVWR, GCWR, etc).
