Count yourself blessed to have access to one. Would tell you lift ratios if I had access to one you lucky bastard
While you are still rehabilitating your shoulder e.g. restoring range of motion the SSB will be super handy and you could use it exclusively until you’re ready for lowbar.
Specific as fuck therefore plenty of carryover. Used by plenty of powerlifters e.g. Dan Green, Pete Rubish etc.
Program it like any other main lift / builder e.g. as tho it was high bar. Awesome if your low bar squat beats up your shoulder/elbows/wrists noticeably especially with high volumes.
Alex “The God” Simon (insta godlystrong) squatted SSB almost exclusively leading up to Pro Raw Big Dogs later this month. Couple of sessions low bar and he looks set to hit an Australian Record squat in comp. Maybs 430-440kg