That’s sounds great. Have you tried any other brands of nutes or super mixes ... too give a comparison.
Becuse I see bio tabs as a very good product indeed, I might try there bio tabs alongside an emended soil... and drop all there feeds by half. And see what magic I create...
Just curious.... they always advise too place bio tabs in the corners of the pots, I wonder how thease tabs break down and pass down too the roots without any water. maybe it’s the humidity ?. But that raises the question of simply top dressing with dry ferts and covering it with soil, will questionably be the same method.... Probably using dry ferts that ain’t compressed as a bio tabs would give a better chance.