For many years I have use plugs to cover up countersunk screws. I have
always made my own plugs and my early plugs were straight cut and glued
in with either white or yellow carpenters glue. They were never
noticeable unless you were looking for them.
Ten or fifteen years ago I started using tapered plug cutters but I
developed an odd phenomenon, although they fit tighter a glue ring
showed and the plugs became more noticeable.
So why does the ring now but not way back when? One reason could be
that I now use TBIII which dries to a dark brown vs the yellow and white
glues that almost dry clear.
The Snappy guys at the last WW show sell tapered plug cutters and advise
to remedy the ring problem by not using glue at all. They suggest
relying on the the tight fit to hold the plug in place.
So the question I have is if the plug will truly stay in place with out
glue over time? Does any one have any long term experience with using
tapered plugs with no glue?