I can't comment at all on the feeding schedule you have there. Just not familiar with that line up.
Hope that helped some. Good luck on the final stretch.
Most of the time I don't use Grow nutrients at all. I've been using FFOF for a few runs now and find it to be a very hot soil. I normally do 2 transplants. Start off in a solo cup, then 1 gallon, then final pot. I've found that I go around 3 weeks before having to transplant and the FFOF soil is plenty to keep them happy til next transplant. I haven't run into a strain yet where the soil hasn't provided enough for the first few weeks. I always watch carefully for any signs of deficiency though as each strain can be different. I normally plan to flip to flower schedule about 2 weeks after transplanting to final pot. Then I just start using cal/mag and bloom nutrients and bloom booster. I personally only give grow when going longer then 3 weeks in the same pot with FFOF. I bought a General Organics Box that came with sample nutrients and the small Grow bottle is only half gone after almost 2 years now where as I've gone thru a couple bottles of the Bloom. I amend FFOF with a little bit of azomite, dolomite lime, alaskan humus (Ancient Forest), and about 30% perlite.As far as using grow this late. When do you stop giving Grow?
Hope that helped some. Good luck on the final stretch.