I think it largely depends on if you're a pre-washer or not. If you pre-wash, you'll probably need to starch just to stabilize the fabric comparable to what comes off the bolt. If you don't pre-wash...probably no need to starch. I'm a pre-washer and a starcher. I use the liquid sta-flo at about a 50/50 mix. Not to heavy but certainly better than no starch. If something is really flimsy I can always spray multiple times.