I was planning to use my mega-mold as a frame/box for the silicone liners. I've only used it for 2 batches so far because it's so unwieldy and I hate dealing with/cleaning the plastic liner. I'm hoping to do exactly what Punkin described . . . remove the silicone liners after the soap firms up and slide in a new set. I only bought 2 liners because that's all the mega mold will hold at one time but if testing is successful I'll probably buy at least 2 more.