I would like to suggest that WBP (Water Breathing Potions) have their recipe slightly altered. Instead of having regular spores in the mix could you change it mutated spores?
An alternate suggestion would be to have WBP made with regular spores and a Water Breathing Elixir (WBE) made with mutated spores that would be a little more potent.
As a final suggestion perhaps we could have a few shrooms start dropping regular spores again along with mutated spores. (I have heard rumours this already happens but have never recieved confirmation -- if it does already happen perhaps you could crank up the drop rate a tad?)
SDC!
Zynx