I don't know if was the sealant or bleeding with the engine running but another 32oz of brake fluid later and I can stop on a dime!! Very little travel and excellent stopping power. As long as I have an extra gallon of fluid and some newfound confidence, I'm thinking about actuating the ABS and bleeding again to see if it can get even better.
I guess now I need to bed them. I'm not sure if that's necessary but it seems like a good idea. For what it's worth, I used Cardone Ultra caliipers, OEM rotors and pads, and Stop Tech lines.
Fluid still looks murky but it's better than what was in there before I started.
I'll do the rear stainless braided when I talk myself into doing the rears. But at least now I know how to successfully bleed and with those speed bleeders I can do it alone.
Oooh, I just remembered I can send the old calipers back to Rock Auto for some money back!
Huge thank you to everyone who offered advice and suggestions. This community is priceless!