I started using turf fuel this past season and plan on continue using it this upcoming year. It was introduced to me and I tried the Respo Fuel and Photo Fuel on our greens. This product worked great and here in Ohio, we saw a horrible year with heat and lack of rainfall last year. Our greens held up great to the weather and I contribute some of that to the Turf Fuel products.
I would alternate every 2 weeks between the Photo Fuel and the Respo Fuel at 2 oz/m. The label for both says 2-4 oz/m, but I used the 2 oz rate and had great success. The only thing to be careful of is that if you are using any phosphite products you cannot mix with the Respo Fuel, or you will end up with little gels in your tank.
I do recommend this product. I know there are so many products like this out on the market and most of them are great, I am just talking from experience on this product.
http://www.turffuel.com/products/greens-force/Paul L Double
Sugar Valley Golf Club
Bellbrook, Ohio