Fox Farm in soil

I am using the Fox Farm line in a soil grow, and following the recomendations from the web site. I followed the bloom schedule on my last grow, and had great results. This is a new grow from clones, and all of the plants look like they are having nutrient issues. All of the fan leaves have hypochlorotic areas. Does anyone have any recomendations? Should I go with half strength. The only difference with this grow is that I am using 5 in square pots, instead of 10 inch square pots. I wonder if the extra soil in the larger pots buffered the extra fertilizer. Any input would be appreciated.