Two questions: 1) I have a 360Q with a tail that was badly spliced to a 15' extension; the splice fell to pieces when we struck so I now have a lampholder with four inches of tail sticking out. I can't see a way to loosen the strain relief in the base; any tips for how I could go about removing this OR how to do a safer splice? Furthermore, know any good West Coast suppliers of tail materials, and what conductor size/rating should i get? 2) While bench-focusing the other day, one of our S4 Jrs decided to jam the centering knob (the outer one) so that it's permanently loose. Is this a WD-40 solution or do you think something bigger is wrong? I have maybe 5 degrees of possible rotation before it sticks either way - but the base is still loose. The peak/flat knob works fine.