Actually, the spiral is probably the best of the mixer designs where heavy duty mixing is concerned, the only problem is that they don’t normally have provision for an attachment hub or use of a flat beater (paddle) for mixing sauce, so they are more of a dedicated, dough only mixer. The planetary mixers are sturdy, have attachment hubs and also come with flat beaters, douigh hooks, and wire whips, just to name a few of the many attachments available for these mixers, plus, you can also get them with different size bowls, pretty versatile. The VCM (vertical cutter mixer) is a very high speed mixer (about 1750 r.p.m.) and will mix a dough in about 90-seconds. The trick to using them is in controlling the finished dough temperature. You also need to suspend the compressed yeast, or if using instant dry yeast, pre-hydrate it like active dry yeast only use 95F water with the IDY. and 100 to 105F with ADY. The VCM will also shread your cheese, and mix your sauce. Be aware that there are two different mixing blades for this mixer, a flat, blunt blade for use in mixing dough, and a curved, sharp blade for cutting cheese and other things needing cutting.
Tom Lehmann/The Dough Doctor