Hi out there. I have a CG5 mount which I picked up aboput 6 or 7 years ago. Mainly it's been in storage. I tried to sell it, but no takers, so I've decided to keep it and am going to use it. It seems like a fine, very smooth working mount. I have heard that one should take these things all apart and regrease them and replace bearings, ect. and this all sounds like a major overhaul to me. Can anyone tell me why this should be done if everything seems to be working well.