Any thoughts on what's not worth taking from /Psionic Assault?

[JnEricsonx]

Remaking my Grav/Psi from back in the day, and for the life of me, I can't remember what I took.  Right now, I have Psionic Dart, Mind Probe(nice Crushing Impact set there), Psychic Scream, Drain Psyche, and Mental Blast.  Now I'm going to take Psionic SHockwave, but I'm trying to remember if I need TK Thrust(I have 2 KU/KB powers in Grav), Subdue, or Psionic Lance.  Given that I'm shooting for perma-dom, the amount of +rech I'm going for will make a much tighter attack chain, so I only need so many attacks.

[Wintervoid]

In addition to what you are planning, I took Subdue.  I passed on TK and Lance.  I also passed on Scream because I tend to be in the middle of combat and with enough recharge, Shockwave is enough.  I do solo a lot, so I may change my mind on Scream with a different primary (Electric) or if I were just looking to add AoE damage to a team.

 

If I remember correctly, Subdue and Mental blast are basically the same attack with different secondary attacks.  I might think of dropping one, but that leaves you with Dart and one other ranged blast and Dart is not great DPA. 

[Griffin]

Can’t you get perma fast snipe with domination? Does that make the snipe worth taking?

[Lazarillo]

Can’t you get perma fast snipe with domination? Does that make the snipe worth taking?

The To-Hit Buff in Domination only works for the first few seconds.  The only set that can approach Permanent Fast-Snipe alongside Perma-Dom is /Martial, because that's about the same threshold for Permanent Envenomed Blades.

[Machariel]

Even without perma-snipe, I would probably take the Snipe in every powerset at this point - Tactics + Kismet IO + a small yellow gets you fast snipe on demand and it seems a small price to pay to get access to such a high-DPA attack.  I find the Snipe to be a good place to slot the Decimation: Chance for Build Up proc as well.  I haven't played much with /psi myself, but I'd definitely plan to include Lift in your attack chain since it gives you some smashing damage, which is usually good against enemies that heavily resist /psi. 

[Griffin]

I haven’t looked into martial at all, but I just recreated my old plant/psi Dom from live. Haven’t started leveling yet but saves the name and have him sitting. Psi used to be a great attack secondary, but due to the high resistance at the end game that everyone has been talking about, I am starting to wonder if I would be better off going something else. Decisions, decision!

[subbacultchas]

I haven’t looked into martial at all, but I just recreated my old plant/psi Dom from live. Haven’t started leveling yet but saves the name and have him sitting. Psi used to be a great attack secondary, but due to the high resistance at the end game that everyone has been talking about, I am starting to wonder if I would be better off going something else. Decisions, decision!

Maybe, but you've got some excellent support in Drain Psyche in the set too. Long term, I think resistances are not as much a worry as you might think. It's going to affect your speed of killing, but not necessarily whether you can survive or not. I think you'll have enough survivability that you'll manage just fine, and won't lack in damage at all one you get epic pools.