I've made about 12 batches of soap so far, and each is getting better. At first I cut the loafs by hand and the bars were all wonky, so my husband built me a cutter box, but his "craftsmanship" makes bars that are all different sizes. So I've decided it's time to buy an official soap cutter. I'm torn between the kind that uses a blade and has multiple 1"-spaced slots vs the single-wire on a cutting arm with a stop. Blade vs wire? Any particular affordable model you'd recommend for a hobbyist who's totally hooked on making lots of soap?