@Lt-Cartman: You're certainly welcome.
Okay, if you have the ability to open record, then by all means, get them as high as you can in line with the PA System. I presently use the CA-14 omnis, the CA-14 cards and the CAFS omni mics. The cards definitely do pick up less bass (that's in their nature). That's not to say that it will be missing, I find the CA-14 cards do a nice job of capturing bass and mids compared to any other mics in the same price-range (up to 3x as expensive).
The CA-14's are actually his "best" mics that he sells. The CA-11's are considered a mid-level mic. I haven't used the 11's but some people swear by them. I've heard both good and bad recordngs made with all sorts of mics (including Church Audio) and as he did mention in a recent post, he's best to answer what the best solution will be based on location, etc. I'd definitely shoot him an e-mail.
As far as the as the D50 vs. M10 goes, there are a lot of people in these parts who go with the M10 because it has a cleaner preamp on it (less noise). Some of these folks are running mics that would be 10-to-15 more times expensive over the Church Audio ones you're considering. Since you're looking at external mics, I'd say save the extra 40% premium unless you need digital in/out (but I doubt you do).
Hopefully this helps.