I like to tie with real silk thread at times, when playing around with old Original English patterns. Unfortunately, a lot of the silk I order, comes on wooden spools and those don't always rotate very well, even when I've spread out the legs of my bobbins.
So, even after "adjusting" the bobbin, to as good as I can get it, I tear off a 1/2" piece of Teflon plumber's tape and stick one piece, on each end of the spools.
The spools, turn like ball bearings, without loosing any tension and the silk "flows" off the wood spools effortlessly! For quite a while, now, I've ran this simple setup with all my bobbins, using both wood and plastic with either silk or thread spools.
Saint Paul-"The Highly Confused"
You cannot do a kindness too soon, for you never know how soon it will be too late.
-- Ralph Waldo Emerson