Jaycee,
Indeed yes, that is one of Dig's recipes.
Geno, I well remember your valuable contributions to the original thread, and yes for sure rosin and the sap from fruit trees is and was a valuable addition.
As we all know turpentine in its various guises is used, but I once got a paint technician to give this subject some time and thought. He came up with a concoction that utilised Napthalene as the evaporative, it worked so fast it was like magic.
Many of the recipes use carnuaba wax for hardness of finish but the traditional ones use beeswax.
Also many formulae use Tung oil rather than Linseed, but beware as Tung oil can cause skin irritation on some people.