For ironmen i have found it extremely difficult to acquire herblore secondaries, and after talking to a lot of people, they just let clues stack up in their bank. So what I had in mind, is that you can get herblore secondaries from clue scrolls. I'm not talking massive amounts, but like the seeds, maybe 20 or 30. Maybe you could also add battle staff crafting, because currently the best way to level crafting is making gold amulets, and that is slow and boring. It would give purpose to battle staves, and it would be better crafting exp. Also, buff the amount of gems you get from the wall safes if possible.
-My ironman