After much experimentation, I’ve landed on using the Tango Ultimate Reel (T.U.R.) for the Silk Thru Coat Hanger trick. I’ve played with most of the major reels and ended up on this Tango reel. There are some things I don’t like about it, but so far it’s the most reliable.
The T.U.R. has the smoothest pull and one thing that I noticed was that the spring is rolled in a different way than I’ve seen in any other “magic reel”, or commercially sold badge / key ring reel. I’m not positive that rolling the spring this way contributes to the smoothness, but that’s the big difference between this and other reels.
I’m glad I kept searching around for a reel, this one makes me feel more secure when doing the trick. Having a bit of piece of mind when doing something mechanical, that’s a bit knacky is bonus!