Wow, thank you for all the comments! Someday I might replace the internal wiring and build my own 3-way outboard passive crossover. I'd probably also bypass the fuses entirely--I really don't ever listen at levels that high, and my monoblocks can deliver more than adequate power (900wpc) for my needs. If I chicken out, I'll definitely use the isoclean fuses.
The Cardas pins are tempting, but they'd be not too useful if I performed the aforementioned mod.
Persve -- as far as I know, ASC products are available overseas, and I'm almost positive hifi-tuning is based in Germany, so you should have no problems acquiring them.
Rootmann -- glad to hear you got a ported subwoofer to blend with Maggies! I had no luck with a 20-39PC I bought and tried out years ago.