RG,
My late brother in law was a die hard fisherman, LMB, white bass, crappie you name it. He fished several times a week until cancer took him. He aways loosened the drag on all his reels when he finished for the day. He claimed that the drag washers would start to stick if you left them screwed down tight all the time. So I got in the habit and I try to loosen mine each day and then I check them as I set them out the next time I go out. It is a pain if you are running 10 or 20 rods, but might save you a trophy fish one day.