Been running this with decent effect, mainly either as a flanker or damage support when the balls collide. You can exchange the Lpl's for PPCs if you want a bit more range, and the build works decently with the stock 275XL as well.
Haven't got to the 5M yet, but I like the look of this. I've been running something very similar on my DRG-1N, but I think this is probably better - it's faster and has JJs. My only criticism would be that if you're running streaks, you need a BAP to get the most out of them. Dropping a HS and a JJ would be one way to do it. I could see a dual SRM4 version working as well, such as:
Main reason I'm not running BAP on it atm is because there's plenty of Locusts to murder atm, and yeah, no ECM As far as the SRM4's go, I LOVE me some SRMs, but honestly until they fix the hit registration issue with SRMs, you wont see me running them unless I just feel like a challenge, I get higher damage with my Streaks at all times even though my accuracy with SRMS is 80+ with 6's and 4's.