Yes mate, once in bloom full dose of calmag is appropriate...
Mr. Plantas-- I think it's a less typical manifestation of P defc,... your in-pot pH, 6.6? I ask in part because of OF being really spotty for quality control, often badly acidic soil,... looks like you got lucky, there are no other symptoms indication badly off pH so far,... looking at your nutes and feed rates, and her stage, i'd say you have a simple lack-of P defc. here... Have you noted how low the NPK #'s are on Big Bloom? --decimals,... so it's great stuff, but so mild, I DQ it as w true fertilizer, more like a tasty supplement,... the Tiger Bloom is what you need to elevate, and get the PK inputs up, 1tsp/gal and see how she reacts,... It has a fair amount of N in it too, so you can skip the Grow now.. looking at the leaves, nary a yellow one yet, so she seems stocked up on N well enough,... also consider using a bloom booster (fat PK#'s) as an occasional alternate to Tiger, diluted of course,.. no small danger in burning with such fert's, but done right, it can blow the buds up amazingly! ...yes on full strength Ca-Mg too, since you're using Di water with no CaCO3 in there, and hence, no pH buffering capacity,....
Mr. Plantas-- I think it's a less typical manifestation of P defc,... your in-pot pH, 6.6? I ask in part because of OF being really spotty for quality control, often badly acidic soil,... looks like you got lucky, there are no other symptoms indication badly off pH so far,... looking at your nutes and feed rates, and her stage, i'd say you have a simple lack-of P defc. here... Have you noted how low the NPK #'s are on Big Bloom? --decimals,... so it's great stuff, but so mild, I DQ it as w true fertilizer, more like a tasty supplement,... the Tiger Bloom is what you need to elevate, and get the PK inputs up, 1tsp/gal and see how she reacts,... It has a fair amount of N in it too, so you can skip the Grow now.. looking at the leaves, nary a yellow one yet, so she seems stocked up on N well enough,... also consider using a bloom booster (fat PK#'s) as an occasional alternate to Tiger, diluted of course,.. no small danger in burning with such fert's, but done right, it can blow the buds up amazingly! ...yes on full strength Ca-Mg too, since you're using Di water with no CaCO3 in there, and hence, no pH buffering capacity,....
Mr P, that gal looking healthy IMO. I think this spotting is something the BM is predisposed to, did exact same thing on mine and I'm running biotabs with full supplements.
I've read elsewhere this is in fact nute toxicity, which made sense with mine as tips were showing overfeeding in addition to the spots:
View attachment 796473
If it's got worse since you upped the nutes and you seeing yellow tip ends, then you shouldn't be upping the feeds and should just ride it out for week or so and see how she fares.