(Psi)SeveredHead
Adventurer
Did you see the PsiH errata? The displays last only one round. Except for the visual display, they aren't all that obvious, since you can choose whether the display appears on you or one the area of effect of the power. Also, all but the Ma and Vi displays can only be detected within 15 feet.
For instance, if you use Mass Concussion, which has a Ma display, you can choose to cover yourself with the goo (if you're hiding in the bushes, for instance), or you can cover your foes with it. Covering the area with goo might not be stealthy, but neither is rupturing your opponent's organs and watching them hork up blood. Plus, since you didn't have to sing and dance, no one knows you did anything! Imagine for moment Polymorphing into something innocent-looking and then using Mass Concussion. Again, they see goo, but they're more worried about taking the damage.
Suppose you use Teleport, which has a Vi display. You disappeared man! I think the glowing eyes and rainbow-crotch display (tm) will be the least of your opponents' concerns. They saw you disappear, something which doesn't happen everyday (except, maybe, in the Forgotten Realms). Also, how do they know you weren't using Time Hop or Invisibility (unless they've got PsiCraft?).
Suppose you use Disintegrate. You fire a green beam at your opponent, if it hits, part or all of them turns to dust! Oh, and your eyes glow silver. I think using Disintegrate was fairly unsubtle.
Suppose you use Greater Domination (no spoken commands
seems fairly subtle) on Rurik the Viking Warrior. You silently order him to kill his friends. He starts foaming at the mouth and brains his closest ally. Oh, and the allies hear this weird bell-ringing. I think they've got more important things to worry about.
Suppose you wanted Greater Domination to be stealthier (eg order a guard to rescue your friends from prison, 3 days later). Just make sure either you or the guard are more than 15 feet away from anyone else. The ringing only lasts for 1 round (see errata), so it's not like everywhere he goes, people hear strange bells.
There are a few powers that have poorly-chosen displays (eg why does Mindlink cause you or your friend to be covered with goo? Not very subtle if you want to talk to your friend without anyone figuring something out). But for the most part it hasn't been a problem.
For instance, if you use Mass Concussion, which has a Ma display, you can choose to cover yourself with the goo (if you're hiding in the bushes, for instance), or you can cover your foes with it. Covering the area with goo might not be stealthy, but neither is rupturing your opponent's organs and watching them hork up blood. Plus, since you didn't have to sing and dance, no one knows you did anything! Imagine for moment Polymorphing into something innocent-looking and then using Mass Concussion. Again, they see goo, but they're more worried about taking the damage.
Suppose you use Teleport, which has a Vi display. You disappeared man! I think the glowing eyes and rainbow-crotch display (tm) will be the least of your opponents' concerns. They saw you disappear, something which doesn't happen everyday (except, maybe, in the Forgotten Realms). Also, how do they know you weren't using Time Hop or Invisibility (unless they've got PsiCraft?).
Suppose you use Disintegrate. You fire a green beam at your opponent, if it hits, part or all of them turns to dust! Oh, and your eyes glow silver. I think using Disintegrate was fairly unsubtle.
Suppose you use Greater Domination (no spoken commands

Suppose you wanted Greater Domination to be stealthier (eg order a guard to rescue your friends from prison, 3 days later). Just make sure either you or the guard are more than 15 feet away from anyone else. The ringing only lasts for 1 round (see errata), so it's not like everywhere he goes, people hear strange bells.
There are a few powers that have poorly-chosen displays (eg why does Mindlink cause you or your friend to be covered with goo? Not very subtle if you want to talk to your friend without anyone figuring something out). But for the most part it hasn't been a problem.