if you look at the ingredients, you'll see that this stuff is mostly ubiquitous.
there may be a few options to choose from to provide Nitrogen or phosphourous et al, but the variances are not likely noticeable with the human eye. There is no magic bullet. there is no magic sauce.
beware anecdotal knowledge. e.g. no nitrogen in bloom is retarded and wrong.
you need a well-balanced formula in bloom just as you do in vege. Whatever variance there is, learn through trial and error and not listening to people that just repeat things blindly because the herd of cows have whimsically vered one direction or another.
You are in soil, so it's not as easy to give specific instructions. it depends on what amendments remain in your soil and how you have feed it so far. sometimes deficiencies/toxicities take weeks or even more than a month to present themselves to us. The longer it takes to show up just means your formula is closer to meeting needs vs over-feeding or under-feeding. This is a good thing and the adjustments become smaller and easier to make.
soil is trial and error. take notes. keep track of your weighted average of percents of each important nutrient, not just npk. Ca / Mg / S need to be understood too. The plant doesn't just need these at particular times, it need them at all times.
you have plenty of products to concoct a well-balanced diet. i'd suggest somethign near 7-8-15 weighted average. i don't know the other three in this way, because i calculate PPM from labels and am in a soilless context, so my ppm's won't be the same as what you give if not fertilizing every irrigation --- frequency of fertigation impacts concentration, but ratio of nutes will stay similar when well-matched to plant metabolism.