Shoeps Omnidrectional and Wide Cardiod Microphones

["Rory" rory_ca2]

I'm going to Newfoundland on Friday with two CMC641 mics that I will
use for mono voice recording and ORTF ambient recording. I am
thinking of taking along two omnidirectional capsules for ambient
nature recordings, especially by and on the ocean and rivers, using A-
B.

Schoeps makes four versions of its omni: MK2, MK2H, MK2S and MK3:
http://www.schoeps.de/E-2004/omnis.html

If I do this, I have to decide tomorrow, and I won't have a chance to
try any of these out. Judging from their web site, I should be
considering the MK2, MK2H or the compromise MK2S. Any thoughts about
the appropriateness of these?

A possible alternative is two wide cardiod MK21g mics using ORTF. I
just wonder whether these mics will do much that my MK41 mics won't.

Thanks for any comments.