I mean, sure. It seems like you basically agree with my posts (except about series LLCs), though you don't want to say so directly. BTW, I'm pretty sure that it's "chest thumping" when you start a post with, "I am not sure you have read the 704(b) regulations and if you have, then you do not understand them." (Although maybe you meant to be ironic, given that you, by your own admission, garbled the rules in the rest of your post.)
For this poster, the plain(-ish) English answer probably should've been, "Yes, it may be permissible, but the allocation of (tax) profits needs to track the business arrangement. This issue is touchy, however, and many people simply would avoid having both businesses under one LLC. You should talk to a lawyer or accountant who can go through your specifics. But if that person says your allocation doesn't work (or can't work), ask why, ask for alternatives, and make sure you understand their answers."
