A good example of a page that works perfectly the way we want it to is here:
http://www.universaltheosophy.com/legacy/movements/western-transmission/neoplatonists/
Might have figured out the main problem we're having: there are two kinds of toggles - 'fancy' and 'minimum' - and it looks like printfriendly works perfectly with 'minimum', but not with 'fancy'. Fixing that might be all that's needed to solve our issue.