I start at 10, do one arm at a time for maybe 3 sets, then jump to 15, one arm a time, alternating with no rest, then 20's alternating arms until I get bored.
I squeeze the DB up since I have tendinosis in both my RC's and my promixal bicep tendon didn't look so great on my last shoulder MRI - apparently laterals are one of the worst exercises for tearing a frayed proximal bicep tendon and that would suck !
I also stop about an inch from shoulder height (impingement, yay) and avoid the bottom 1/6th of the lift since apparently that puts hellacious stress on the RC to initiate the pull.
Then I go do some equally faggy light pressing on a hammer machine or light DBs. I shoulder pressed the 140's for a few reps many years ago but these days I rarely go over 80lbs for presses

Almost always do it after chest so I don't need to use so much weight I get hurt.
getting old is a bitch