Thanks for all the inputs/support. My bunks already have a rubber pad attached to the aluminum top piece which is fabricated at an angle to match the boat hull "V". Boat traffic (wakes and winds and currents) can make docking/lifting temporarily challenging...therefore, my overall goal was to have more margin of safety/error so that I do not impact the lifting strakes or the chines.
By installing four 2.5" spacers I was able to spread my bunks a few more inches (giving me ample clearance from the hull features) while keeping the keel clear of the cross beams.
https://cimg2.ibsrv.net/gimg/www.off...2cd5b31602.jpg
https://cimg0.ibsrv.net/gimg/www.off...946973d7ea.jpg

Went down this road twice with Richey Sutphen, RIP, and boat lift companies back in the day. Sutphens had a full length stringer system. Richey specifically used to say to support boat placing bunks directly below stringers. Most boat lift companies didn't really care where they placed them. So I would have them call the manufacturer and verify the logic to my request. Typically the hull would have to be centered on lift with vertical uprites.

will do, thanks