Presser
You want to get serious about getting rid of your joint pain and get good lubrication, you need to get Adequan. This is a vet product and needs a prescription but you might be able to find it on one of the boards. Had a buddy take it for 4 weeks for his busted up knees, he can squat now he couldnt squat for almost 2 years. I'm sure it works great for shoulders too. I just got a cortisone injection in my shoulder a month ago and it feels great can actually do DB overhead presses again.
Good Luck
Procard