Must admit, if I were you, that I would be tempted to say Waterman inks are for use in my Visconti and I will keep the Sherwood Green for everything else.
Yes, I'm tempted to do that. I don't normally match my ink colour with the pen but the Michelangelo is such a lovely green that it couldn't resist trying...
A good excuse to try out numerous green inks in the market. You can't make the pen behave with a particular ink, but surely you can find one out of a hundred or more with which it'll play well enough?
Get thee behind me Satan! The last thing my wallet needs is for me to fall down the ink rabbit hole!