I have a second hand AKG. (I don't know the model #) It's one of those tringular ones that are built like a tank. I tried a kick drum mic, and it sounded great for the bodhrán but not good at all for bones, shaker etc. I also, play a lot of high end stuff on my drum. Rim shots, flat hand inside the drum, glissandras, etc. I often end up playing every thing through one mic. (Like when the house PA turns out to only have 6 channels) At any rate, I paid $70 used about a year and a half ago and have never had any complaints. I've tried playing with those clip on things and the one obvious problem is you can't get closer or further away from the mic. Granted, you can do more with dynamics by tipper control, but why give up mic proximity if you don't have to. On a crowded stage it could be a good thing, but I'm pretty good at carving out enough space for a boom stand.
Good luck with the Seinhauser, Skarpi. Please let me know how it works out.

Rich