Kevin P
The Eichmans hold their own against the Cardas I think. As far as durability I have not had trouble with them and used a set without any type of strain relief for over a year.I found a good way of providing strain relief with them also.
Of others that I have talked to that produce cables they have found them to be better for sound quality over a number of other RCA's including Cardas,Homegrown and Canare.
Just my results and what I have gathered from others and your results might not be the same. They did best Cardas SLVR's,Daytons WBT knockoffs and Homegrowns when I tested last year using a Passive with reference quality speakers.
I had some people inadvertently put them on and push the pins back. I have not had it happen to myself in my systems.
If people can afford the WBT's which I have not tried yet,hey cool!
I have people using Cardas also and it's an alternative to Eichmanns ,but I do like the quality of playback I get using them as much. Less metal in the design is closer than no metal and a straight contact I guess. I tried 47Labs Connectors which do not get good contact all the time either,but when you do it is good.
Would like to develop a better type of RCA that does not have as much metal to it along the lines of the eichmanns\WBT's that gets a true contact and does not have issues like the Pins.
Good luck!