Crispy leaves and brown spots

Hey - is this your Diesel Auto? I think so... if it is, you're feeding it a bit too much nitrogen and it's causing a calcium deficiency that just throwing calmag at it won't help. Too much nitrogen will lockout other nutrients and most especially calcium... The other thing I'm NOT seeing that might be relevant is any information on the pH level you're maintaining. Everything you give your ladies should be pH balanced between 6.0 and 6.5 at this stage of their life. If the pH is lower than 6.0, THAT'S what is causing your lockout. I would do a couple of things here.... first, I would reduce either your BioGrow or your Top Max or BOTH (top max especially has a lot of nitrogen in it)... plants in flower still need SOME nitrogen but not a whale of a lot... Secondly, I'd answer the question about the pH - are you maintaining a good pH balance? If not, just correcting this will most likely solve the problem. If your pH is ok, then you're going to need to do a flush... since you're growing in 4 gallon pots, this means putting 12 gallons of pH'd water through them... into the last gallon, figure out how much BioGrow and Top Max you actually want to feed them going forward and then cut EVERYTHING in half and add that... so if you're going to cut the BioGrow down to say 1 tsp, for THIS feeding, just add 1/2 tsp... Let her dry out completely before giving another drink and she should be just fine. The leaves that are damaged will NOT repair themselves so don't expect that - but the new leaves should not exhibit these symptoms! Good luck!