I run flouro for summer steelhead, or any low clear water situation. Flouro will out fish mono 100 to 1. The trick is to have a strong flouro tied with good knots. If you combine the two, flouro could be the best kept secret you've ever had. One mistake people make is down sizing the line size when they switch to flouro. Yes you need to down size from a 10# mono to a 6# mono, but since flouro has a refraction index nearly identical to water, It makes it practically invisible. There fore you can still run a 10-12# flouro leader. Its important to tie good knots tho, as flouro tends to burn a lot easier then mono. Never use your own spit, just soak your line in water and pull the knot down slowly. But the best trick is to have a bowl of soapy water sitting next to you in the boat, the extra lube will help your knot side down perfectly without burning your line.
The only two flouro's I run are Plines and Seaguar. With Seaguar being my go too flouro.