BW Hitch Height

I posted this question once, but cant find that replies…
For those of you who tow with F350, what holes are you using to install the uprights in for a level tow?
I am awaiting my new BW and don’t want to torque down the bolts only to have to re adjust and re torque.

Any help is appreciated

I have the BW companion hitch and a 2024 350 with a 8 foot bed towing a Z2900 and I have the hitch at the highest setting and riding level with excellent side rail clearance!:sunglasses: