I haven’t been able to get on the forum for a few days, so I’m jumping into this late. Just wanting to add that, at present, I’m doing just the TQ guides without the SCM guide. I’ve done both and might go back to doing both, but you can make it work either way. As others have said, the SCM modules give you a framework and sometimes that is very beneficial.
I’m using TQ with ages 7-14 presently and it works very well. I schedule an entire time period before we begin using the table set-up in Open Office. If I had completely uninterrupted time I think I could do that in about four hours. I schedule a spine that I read to the youngest kids, a spine that the oldest kids read on their own, readers for all ages and a family read-aloud. We read the commentary together, mostly with me paraphrasing and all of us discussing.
We often skip the artist and composers in the TQ guides and use SCM for that and for Bible.