Siglady,
I have tendinitis in my right elbow and so it hurts after shooting. I use my left arm to manipulate the lever on my SDB. Sometimes I alternate my right and left arm. On the 550 or 650, you're pretty much stuck with using the right arm (I asked Dillon). Something to consider if you have arthritis. Also, use One -Shot to lubricate your brass! (thanks, BENOS).
braindoc