Update: We took Bane to a clinic that specializes in orthopedic surgery. They examined him during walks, did physical examinations, as well as x-rays of all of his joints. Based on the physical exam, the vet couldn't find anything unusual. Bane allowed him to manipulate all of his legs with no issue. Again, except for the clicking he hasn't shown any kind of lameness, inability to walk or anything like that, so I'm not surprised about the outcome of the physical exam. We did review the x-rays together with him, and he said that he cannot see anything out of the norm. Compared to x-rays that clearly indicate hip dysplasia, Bane's hips looked good to me, too (that's coming from someone who has not seen a whole lot of x-rays in his life). They are sending the images to a radiologist for further review, which seems to be a standard procedure. As soon as I receive the images, I can share them with everybody. Apart from that, he wasn't concerned about the clicking as long as he doesn't show any signs of discomfort. He believes that giving the glucosamine supplement was a good idea regardless. Also, he mentioned that we should keep Bane at his current body condition, which will be beneficial (we are doing that anyway). I'm kind of happy about the visit, but I'm definitely looking forward to some expert opinions on the x-rays (I should have copies by tomorrow). He was sedated for x-rays, and they conduct further physical tests during that time period. As always, thank you all for your support!