I have never used FF nutes. I have used their soil and was happy with the results. I found ocean forest to be fairly hot when i used it.
I ran a veg of about a month with only ph'd water cal/mag and silica blast. In the first week of flower i will add 10 ml of pro blend (botanicare) per gallon to my reservoir (which holds 2.5 gallons). I will up the dose to 25 ml by week six. at week six i stop all feeding except for cal/mag and an 1/8 of a teaspoon koolbloom per gallon.
Since then i make my own soil using pro mix and amendments. I can almost do a full run with only ph'd water cal/mag and slica blast.