I wasn't putting you in your place. Read it again. I'd already said in my previous post tha tI agreed with you on this point. Here I was saying that most
real teachers (as opposed to transient backpackers) would also agree.
oops. I have just read it again myself - I wrote, 'I don't think you will
mind' , when I meant 'I don't think you will
find'. The typo-demon strikes again

. Sorry. I am off to edit my original, though it will be preserved for all posterity in your quote.
Also sorry that I can't recommend any materials. I retired three years ago, and hadn't used much mainstream stuff for some time before that, so I don't really know what's around these days.