About 10 years ago we ate 2k shirts by using a 50/50 ink (that were were told was suitable for cotton or 50/50). Not so... they all ghosted. Last year a large company near us ate a $250k job because of ghosting. A quality 50/50 on grey cotton tees. All I am saying is test, test, test regardless of what the manufacture tells you, or doesn't tell you.