Thanks for your reply Jane! I've decided to add a Back, Chest, Shoulder day (eliminating bi's & tri's since they also get worked as accessory muscles). This will decrease the time needed for the lifting portion, and I'll be able to include targeted stretches/mobility/recovery work.
I agree with you about XT, especially since it has 2 workouts for C/B/S, the Rear Delt Bonus and the 100 Rep Challenges.
I note that Ripped w/HiIT has a shoulder routine on both UB workouts - one for front, one for rear, but also includes side.
Slow & Heavy's shoulder routine is 31 minutes and works all areas.
Strong & Sweaty's Ramped Up UB looks pretty good too, and I'd eliminate the bi's/tri's for this added day.
And ICE's Muscle Meltdowns for these three areas also look good.
Interestingly, the original BodyMax looks to have a shorter UB mix that may be a good "add-on" day.
Any input is appreciated. Thanks!