Good secondary synergy for a Psi Blast Sentinel and reasons

[qwerty1971]

I am looking to make a psychic blast sentinel but am undecided on which secondary to select. I do most of my character build thinking at work so I do not have Mids available when I plan out a character. Any useful comments are much appreciated.

[tjknight]

So weird you posted this.  While I don't have hard numbers, I can't help but think Psi/Bio/Psi would be a good combo.  Given the %25 damage boost that Bio's offensive toggle grants. I got the idea after teaming up and running some Praetorian missions where we battled mutated Seers. One of the mobs appeared to be using Psychic Blast powers with Bio-Organic armor.