Budding Formulas. Worth the Money??

I grow in soil indoors.
Has anyone noticed any significant improvement using Budding formulas like:
Dr Hornby's Big Bud
Rock Juice
Canna PK 13/14
Canna Boost accelerator
or any of the many expensive suppliments on the market.

I've tried PK 13/14 using the directions but every time I tried it my plants stopped growing pistols, so shit for me, maybe it works in hydro.

Also Canna Boost certainly didn't make my plants mature 20% faster as advertised, so shit too, maybe it works in hydro.

Iv'e also tried Dr Hornby's Big Bud but Iv'e had bigger buds before I used it too, so maybe shit as well, maybe it works in hydro.

Is it all just hype to spend big bucks for little or no return.

So basically my question is are there any additives that are worth buying.

Thanks for any input.

I'm interested in hearing what other people have to say too. I try and keep things simple, just the Foxfarm trio(not the solubles) and a little Super Plant Tonic. I'm thinking about using Final Bloom on my current grow in a month just for shits and giggles. At least I'll have something to compare to because I'm doing an identical grow to my last, same strain and mostly the same nutes.

I use GH 3 part with
Big Bud (not worth the money when It runs out I'm done with it)
Cal Mag (All plants seem to love it and it helps them green up)
Molassess Gotta have it I use it from veg thru flower (from the supermarket) Less than 1% salt
And I finish with OverDrive, Now OD is the only one that I think makes a big push at the end.
I flush with carbo load and water
I also use gravity. This will be my first grow with it so I'll have to let you know
I also use Snow storm (foilar spray) THIS SHIT WORKS GOOD!!!!!

Thanks for the replies guys.
Anyone else around here know something you would like to share?