I think for shadows and asssassins, when you get to 50 and start doing illum and wz your only real choice is kinetic(tank spec). The balance tree is little wierd but prob can do it and get decent dps from it. the infiltraition well in my view is waste. The dps isnt all that great neither is balance but with balance atleast you have some range. Your not going to be over 400k in wz regardless of spec or gear. The problem is that in illum your going to be fighting mostly in range with raids. If you get close to the other raid your gonna get pulled in and get cc to death. So we shadows and assassins go tank spec so we can contribute atleast a little to the raids by pulling their people to us. unfortunetly other than casting taunt and stun that is it and your waiting another 45 seconds for the next pull.
If you do infiltration, good luck in trying to get your 150kills. it will take awhile.
Neither infiltration or balance do i feel like i am tearing it up on dps. My tank tree does almost as much damage and has more survivability. The shadow/assassin class in my opinion isnt well designed class at all. Mainly your just range meat once you pop out of stealth.
I thought i was picking a high dps class, instead i ended up a gimp tank in light armor. lmao. oh well.