Slow release ferts.....what are you using?

I traditionally never used slow release fertilizers in my potting mix.
 
This year I plan on doing side by side with a few extras of the same plants i have....one will get slow release ferts the other will get organic liquid ferts of my choice as needed.
 
So what's everyone using for "Slow release mix in soil ferts" appreciate info for peppers if that matters.

I usually use Osmocote 14-14-14 granules