I have not used them. Based on a quick review of online information, I do plan to get a few and do some testing. I'd like to understand how the electrical contact is controlled when the parts are assembled, and how sensitive that contact might be on variation in several factors, including the length of conductor exposed when the wire is stripped and the length by which the stripped wire protrudes through the threaded piece just before mating with the central piece. The parameter I'm looking for is electrical resistance. Basically I want to know how much voltage drop and power dissipation one of these will add to a circuit, for a given current.
I'll post results when I find some parts and get time to conduct a few tests.
This
product review provides a little more information, and includes some helpful video.
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Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)