I'm with you on this, the clip is best. I get mine from Hobbylinc, but they are out of stock right now:I am familiar with that hack, but it is not near as reliable as using the clip IMO.
Sad state of affairs when you have to clarify the non-pyrogen end lol (not some kind of backdoor slant against the OP, I just thought it was funny)Use a lighter on the non-pyrogen end to separate the two layers. Then use ordinary alligator clips.
Where are you getting copperhead igniters these days, or is it an old stash?