I run a lenco gl75 that had been sounding fantastic....but with a change of bearing-pure pish!
Initially Brian and me degreased it and put some lithium grease in it-still awfull....john martyn sounding even more pished and drugged than usual.
I suspected too much stiction and the bearing not having loosened up.
We then tried motorex 5w/30w fully synthetic- bingo the big man has sobered up and sounding good.
I tend to keep my listening room/house rather cool.
Another play last night and big JM is pished again.
Ambient tempreture and viscotity are the devils work here...
Whats you thought on going gt85/wd 40 till things loosen up?
Ceramic bearing source is in the middle east........ a tad warmer than my gaff!!!