A couple notes on F. Irvine, Scar:
Sleeper abilities are different depending on the person; they manifest as different ways of altering reality. In other words, it's okay if you use Cracken's eye-glowing, but don't base F. Irvine's Sleeper abilities on Cracken's.
By the way, it should be impossible for F. Irvine to block Jedi - or a mage - from sensing his Sleeper powers when he's using them.
Forum A-Wing pilot of mysterious and indistinct gender. Aresener now and forever.