Hey Mick....Can you explain a lil more about SPIRIT BASED WOOD STAINS?
Here in the UK the main stains are waterbased or Acrylic and spirit based.Spirit based can be mixed with oils used to finish wood.It can also be thinned with white spirit, not sure what you
call it in the states, but it is used to thin oil based paints and oil wood finishes.
I used to put some BLO or other finishing oil in a clean glass jar and add the stain a little at a time then test on a piece of scrap.
Bit hit and miss I'm afraid.