Hi, do you guys have any suggestions on getting quill on my MB20 to loosen up. It was built in 1998 and I am the second owner. The quill looks brand new but is tight to run up and down. Previous owner never used the quill. I took off the quill lock to see if it was stuck but didn’t make a difference. Also loosened up the three top nuts on the head and tried to tap head around while running to let it center itself but still tight. Have lubed the heck out of it with WD40 and kept running up and down to see if just gunked up from not using but didn’t help either. Any suggestions will be greatly appreciated. Thanks!