By "pinpricks" I assume you are referring to what painters would call "fisheyes." These are usually a result of the surface not being completely clean before application, and most often indicate the presence of residual silicone. You can get the silicone from some oils and preservatives, from the inside of a case or a gunsock, or from many types of wax. Clean the surface with an automotive paint prep such as Ditz-O or PreCleanO, or carbon tetrachloride (if you can get it). Be careful, and don't get these cleaners on the wood finish.
It is my understanding that Prof. Gaddy used thinned Tru Oil, but later switched to Behlen's lacquer, sprayed onto the stripped metal parts. Lacquer offers more protection and lasts longer, but Tru Oil is easier to apply and easier to refresh, and leaves a nice matte finish. If you use Tru Oil to redo your project, try rubbing it on with your fingertip. You want the finish coat to be microscopically thin, like a coat of wax.
Last edited by Replacement; 01/05/07 11:58 PM.