Early Stealth Indras vs, later versions

I have been looking to buy early versions of the Stealth Indras due to cost considerations (I have a wanted ad posted). I was wondering if anyone could explain the differences between the earlier versions and the latest? Bob
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It was all in the connectors. The new ones are low conductivity and do make a big difference. The early ones were all "beta" versions sold at a lower cost.
I am not sure that all Indras without the titanium connectors would be classified as beta cables. Many were made with Cardas connectors before the Stealth connectors came along. These Cardas-RCA-based Indras perform mighty well in my system. I just wish I could get ahold of an XLR pair which is really what I need in place of the RCA pair. Anybody for a trade?