KM/SR will feel pretty similar to KM/EA with the following differences:
SR is Positional Defense, not Typed, So you will feel slightly weaker leveling, but it is much easier to softcap to everything.
SR lacks a Taunt Aura, so mobs will run away from you.
SR lacks Endurance Tools and a Heal. (This can be compensated for by Aid Self and/or Alpha and Destiny incarnate abilities.)
On the plus side, SR lacks the Psi Hole.
SR has a flat +20 bonus to recharge, not the unknown sliding bonus EA will have.
SR also has 95% Def Debuff Resistance (Huge bonus) and sliding resists that start to take effect as you lose health.
On the whole, SR has less holes, but it pays for that with being a one trick pony, where EA will have more tricks to fall back on. I think EA has more potential end game though, and SR was my first 50.
Im very excited about the /EA (energy)option come to scrappers in the near future, at least I hope soon. Although we dont know exactly how those changes to the current /EA will play on a scrapper Im already excited to plan for a KM/EA already!
My question for today: Im not sure when the powers will become available, but until then . What would be a good KM/?? to try out before we do? Or should I try another class that currently already has the combo? I dont plan on spending a bunch on a practice toon, but I want to give KM a test drive.
Thanks!