I dont know about the lime. I have been doing this with promix for the past few cycles and have found a higher likelihood of experiencing micro nutrient deffs. I am especially noticing the ones with less dolomite lime have much larger colas... It is useful to keep the ph up, but can bring probs of its owni guess all in all its not so bad and can be useful, but proper regular flushing can counter the need for it.
My biggest advice for you would be get a liquid ph tester. You have a vial, put liquid desired to be tested in vial, put a few drops of testing liquid, compare the color. For promix you want your ph to be piss yellow to nitrogen defficient green. The majority of issues inside are.caused by ph being out of zone. Proper ph is equal to perfect assimilation of nutrients. Improper ph exponentially becomes further from desired range as inoptimal assimilation of nutrients leaves and builds residual nutrients which will turn to salts, lock out, and drop the ph of root zone substrate. You should test the ph of nutrients being fed to your plants, and measure the ph of the runoff from the pot bottoms. For more accurate ph readings of runoff, dont take the first bit of runoff from the pots, take the last to drip out, it is more reliable an endemic of inside the pot's ph.
If you can master ph, your gonna be loving the fruits or your hobby