I changed a number of things around about the time I added the flourite, so I can't attribute any positive results strictly to the flourite.
I'd say that with pressurized co2, good light with good reflectors(I've upgraded from the DIY CFL lights to 2x96w PC ahsupply retrokit), regular dosing, and the occasional root tab, you would never know the difference between SMS and Flourite. Aquasoil is another matter.
Those are/were discus. I had acquired them through a tank purchase, but have since passed them on. Too big for a 45g tank. Stressed out all the time.
It's cool to look back at pictures of the rams. They were so small and scrawny then. Now that they've had 6 months to eat, drink, and be happy, they're big and fat, and spawning on a weekly basis.