We've got a combination of "poured in place" and formed footers on the site. The benefit of poured in place is... it's obviously cheaper. Where appropriate, that's the way to go. The benefit of forming them above grade is mainly to promote drainage of groundwater around the basement. The above grade footers allow for a french drain to be easily installed at the lowest level. No buildup of water on the outside of the foundation = dry basement!
John, I'm enjoying your blog and following your progress. Vicarious learning! Do you have a drawing of what it will look like so we can watch it take shape?
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