The schoeps are a bit flatter than the Gefell m210's, but other than the 15k+ hz region, both are about the same.
Funny though, considering both have very similar frequency responses, and both have very tight/true off-axis response, I sure like the m210's better.
Interesting about DSatz's comment on equalizing the km150's. I guess it makes sense, but with the ease now for me for post processing, I was starting to think that some km150's plus some EQ in post to correct the bass rolloff would be an easy solution to finding more places to use the ak50 caps. Guess I'll stick with the 210's.