Ok, just gone done with a major deadline at work.
In short, the e609S is a blast, and sounds great for what it is.
Overall, I find it a hell of a lot smoother than my sm58 and and sm57 on cabs and vocals.
On vocals, it's definately a dynamic and I can see it being great for rock vocals. the high end was smoother than the sm58 and 7, and just nicer sounding overall.
The real deal for me was nailing a sound I've been looking for... I've got a song where I want the sound of the electric guitar strings to be the dominant sound... yep, just miked electric guitar strings. A wall of them.
I think the major hidden bonus with this mic is the response on the black side... the back side of the diaphragm... it has a great dark sound... so I took the dark side, shoved it up against my amp, which was turned way down with a bit of low end crunch, and then sat in front of the mic's silver, front side and wailed away on my electric.
it was perfect. the sound I was looking for. a perfect blend of string sound and a touch for low end crunch.
in general, getting great guitar sounds by just swivelling the mic off axis a bit is really easy.
For $99 I can't believe how nice this thing sounds overall, and it's off axis response is totally useable. I'm looking forward to recording a whole acoustic song with just it and the sm58.
I liked the RNP with this mic better than my john hardy. Something about the RNP makes it sound brighter and fuller than my John hardy.
So overall, for $99, if you're looking for a solid amp mic that can double as a rock vocal mic, this thing is the bees knees imo.
Flexible off axis response and a useable backside make this a great goto color mic for the price.