hawk said:
1. I noticed it comes with a "foam windscreen," is this the same as a pop filter? If not, what's its purpose other than helping block out wind?
No, it is a foam windscreen, not a pop filter. It tends to remove part of the top end rather than pops

Guess someone decided that wind blocking entails removing part of the sound spectrum above 5 kHz...
Get a real pop filter, or use some nylon stocking on a piece of metal wire.
I would also fear the foam will deterioate over a couple of years, and then you may get small pieces of junk on the diaphragm. So safest bet is to throw it out as soon as you get it
2. I can't tell how it connects to a mic stand. Does it come with some kind of clip or adapter?
On the
www.pmiaudio.com website, it currently lists that it comes with a shock mount. Mine didn't -- just had some kind of clip, if I recall correctly. You put that it on the stand instead of whatever clip you have for your other mics. Screws in, as does all other clips.
Never used it, though... LDC mics tend to all pick up some "handling noise", so if you play guitar and tend to stamp your feet in the ground, as I do, you will hear that very clearly also on the recording...
So... get a real shock mount, if you don't get one as part of the package. Or make one yourself if on a low budget.
Alan, the owner of PMI Audio, hangs around here and may answer this question better than me. You could also try the forum on their website.
3. How would you rate it's response vs. an MXL603 in terms of brightness etc.?
Sorry, I don't have a MXL603 to compare with.
But from e.g. this graph (
http://studioforums.com/eve/ubb.x/a/tpc/f/1526095781/m/6776029135/p/1) and from what others have said, I would guess it is slighly brighter, though maybe less coloured? The MXL603 seems to a bit on the bright side also, so I'm not sure how big the difference is.
-- Per.