>And there's so little info out there about the topic! What materials are safe/work? So many processes to master to get a good result, such expensive supplies to be dabbling with! Urgh! Not worth it, right?
Ah, it seems I projected the "trial and error" part. I certainly don't often get it right first try! I would never have guessed about dish soap preventing curing, for instance. So easy for a project to end prematurely in a sticky mess...
Yes, filler primer is great and I recommend it often. I think I actually mention it in the article? It's just a LOT more work than pouring some wax in and out of a mould.