MF has a fluorescent orange but I think its real thin in color. The X2 doesn't shed color unless I really dose up the drop count. Maybe make the MF then add a couple drops of X2 to make the orange slightly richer in color. Honestly I make my X2 fluor. orange real heavy on drops but then let the whole cup of it cool and set up hard, then I use chunks in raw plastic to make my injection colors and I don't see any bleeding done this way.