Hey there - the F12 is one of the worst sounding microphones I've ever heard when used on a kick drum - but - it is actually really, really nice for an inexpensive floor tom mic. The other little mics that come with the set are perfectly fine for using for live sound on high and mid toms...but I don't record with any of them.
The F15s, in my experience, are great overheads for live use. I have even recorded a few tracks with them because on some drummer's cymbals they give a nice shimmering sound...In fact, I used them on the first track on my myspace page. Bear in mind, that myspace's 96 kbps format is cruel to cymbals...but nevertheless, you can actually hear them in real recording use here:
http://www.myspace.com/casperpro
You may find it helpful to know that I have a TON of microphones, and quite a few of them are very, very expensive (I usually use a pair of KM 184s for overheads), but there are some rare occasions when I actually think those F15s are more appropriate as the main overheads....weird, huh?
About cad mics - I have that little set of them, too...and they don't ever get used - ever. I find they're just difficult to use live, unlike the fusion, which usually just need a little scoop around 400-600 on each tom, a high pass at 80 hz, and a boost at about 100 and they sound great, and I use all Sennheiser mics to record drums with, notably the e602 on kick - which sounds pretty great (although I realize you didn't ask about this mic, I would still highly recommend it for a kick mic).
Honestly....the best, easiest, and fastest way to "record" a great kick sound is by using any old microphone with drumagog and a bluejay studio kick sample - but a lot of people consider that cheating or whatever - I call it the best tools for the job, lol.
Hope that helps!
