Does anyone have an opinion on NOT using baseline grids? More specifically, for a long-form book.

There won't be multiple columns, but some paragraphs at the end of sections will use a smaller size than the regular body copy.

So, for the regular copy, 10/12pt looks great. However, when it's 8/12pt, it just looks odd.

The book will hopefully be printed on a thick stock, so it should be opaque enough to not see the text on the reverse side where the misalignment will be obvious.

Yeah, or Nay?