Is it the quality of the printing that's not "up to snuff", or is it the base fabric that is the problem?
If you prefer a "beefier" fabric, the best brands to choose from are Timeless Treasures, Michael Miller, and Alexander Henry. They all seem to very consistently print on heftier fabric. We virtually never have quality control issues with these brands. (Meaning, out of the thousands of bolts we've had over the years, only one was not up to par; it had been printed on thinner fabric. That's an error that occurs at the mill; I'm positive it was not intentional!)
Let us know what happens with your fabric!