best pk boost?

[smallfry707]

i have been using MOAB for the last year or two and im thinking of switching it up. i got a free sample of fox farm and i like how it dissolves so easily in water. MOAB is very granular and doesnt disolve easily... and shooting power cost way to much! and i dont think its very effective to pk boast it during the last 2 weeks of flowering. i see the most bud growth during week 3-5. What about pk13/14 or the hammerhead from advanced or kool bloom? is that a waste of $$.. seems like waterd down pk boost... And im pretty sure all Pk boost is not the same

 

[crownedsparrow]

I too would like an answer. I thought I was running enough PK already by using floralicious plus and GH 3 part but I am really lacking in density and yield..

 

[tripnoncid]

I have had very good results with biobiz topmaxx, just look at my gallery
trip