Switching nutes during flowering in soil?

Hi, i am on my 5th week since 12/12 switch, 4th week since pistils. I have been using FF nutes in soil, Tiger Bloom and Big Bloom at EC 1.7-2.0 every other watering. I recently purchased some GH Maxibloom and GH liquid KoolBloom. I am wanting too replace my Tiger Bloom with Maxibloom and continue with the Big Bloom and start adding liquid Koolbloom.

I am under a 600W aircooled with 6in fan, 8 plants, yeah its pretty crowded in my 2x5 space, its a 10ft long closet but only using half of it since i dont have another ballast for my open air reflector. I do have a 65W and 23W CFL for my two "edge" plants that dont get as much light as i'd like.

What is the general consensus on this? The Tigerbloom is 2-8-4 and MaxiBloom is 5-15-14, just concerned about the extra K, I am thinking i should introduce the Maxibloom slowly starting with half Maxi half Tiger, and then go full maxi, adding lq koolbloom at every feeding. Thanks for any help!!!

RPM

At that age, and they've already been fed, I don't think any problem going full strength right off the bat, but watch for brown tips, as you might have to feed less often.
I like to feed to the point to keep any yellow tips or spots from appearing, but not so heavy or often that I have to watch for burns.
Right now, I am using some new stuff, and IDK if it's because of that, or because I'm growing two strains I never grew before, but I am feeding full strength, and almost every water.

Thanks bro, i already had some my normal nutes mixed up so i added 1/2tsp of kool bloom too each gallon, so i'll use them this feed, next feed im going too maxibloom koolbloom and big bloom at EC 2.0