I am looking into buying a new mixer and am leaning towards picking up a spiral mixer. There have been a few threads on here about them in the past but they never seem to be super clear on what mixers are viable. I have gleaned that a 2 speed mixer is the minimum requirement but beyond that I am unsure what to look for. We make our dough with 25 lb bags of flours and about 15 lbs of water, so right around 41 to 42 lbs total dough weight with all ingredients. Can anybody offer some suggestions and even better some links of appropriate mixers for sale?