I don’t really add any boosters these days but I do change up the Jacks ratio a bit in flowering. I like to go with 3.8/2.2/1.1 in first few weeks of flowering then go to 4/2/1 in mid and late flowering.
I’ve played with giving some AN nutes as a boost in flowering, using the Bud Activator for first couple weeks, then Big Bud for a few weeks, and finishing up with Overdrive, just keep the dose low (like 4ml/gal) and keep Jacks at the base level 3.6/2.4/1.2.
Thanks again for the advice with jacks, I muchly appreciate it.
How often are y’all using jacks 321?
Every 2 to 3 days, as it’s picking up as plants are finally getting a little bigger. I’m in coco for the 1st time, as well as jacks
I use it every time I water. No reason not to, it’s very gentle.
Awesome, thank you 
i just used it for the first time the other day as my plants looked hungry. Thanks as always! I can tell you y’all have saved me so much time and money lol i wouldn’t have had my plants where they are without all the people here
Amen to that. This forum has helped so much steering me away from bad lights, more than anything.
Yeah my next grow im putting a nice chunk into a good light and then the ones i have now will be for seedlings and early veg. I would have spent more money for other nutes; if i even bought any. Just really happy the folks here are cool. I found myself on two other sites and there was so much toxicity i couldn’t believe they were potheads 
I love the true potheads though. The relaxed atmosphere and “let it grow” mentality is so comforting.
Potheads have great knowledge for sure. I’ve been growing in a few different soils with ANs with MH, and ,HPS for a few years and doing pretty well. Outdoors has been my favorite though, but as for now I’m all new, I’m in coco, using Jacks and had the hlg b 300 veg going, and now just purchased the 260w xl qb v2 rspec kit. Hoping to make some pretty buds.
As for using jacks I use it every time it’s just 2 to 3 days apart as my plants 
are still on the smaller side
I have those 2 exact same lights they are well worth the money and pump out some nice dense buds!!
Switch to Jack’s saves $ and time. Works great. Got the big bags, enuff for many runs. No regrets.
So I got a question can I switch to jacks while I’m in mid flower? So should I wait until I start a new grow?
I believe you shouldn’t have a problem with switching. I started using Jack’s on my 3rd grow, started Jack’s a week after flipping lights and believe it was beneficial. After having various deficiencies on my first 2 grows using FF it was nice to see healthy progress without having to worry about whether I’m getting the proper amount of nutrient values. 
I switched right after the flower transition. No issue at all.
How often should I feed? And do I still need to use calmag?
No, you don’t need cal-mag while using Jack’s. I use it with every watering. Obviously if you start to get burn you can go water only on next watering. I’ve only had some burn once, but it was when I first started using it and I didn’t check runoff ppm’s before starting the Jack’s.
I switched to Jacks 4 weeks after the flip and 2 weeks into flower
I use Jack’s. Use to do the GH and Jack’s is so much better and less expensive. You change the formula during the first 3weeks of flower. Other than that, it stays the same. The only thing I do different, is I use homemade Terminator.