Those worth mentioning - I've made them from Van den Hul D102 mkIII and DH Labs BL-1 bulk cable.
none of those compare to the Stagers as purchased
The original Stagers with Canare RCA are good, but I thought they could be better - so I first added Eichman Silver Bullets which brought much improved details and image
Then I tried the Copper Harmony on them and again there was a significant improvement. Next I upgraded to the Silver harmont - again a significant improvement.
Stagers with the Pure Harmony are the best and quite close to the Essence gZero6 Interconnects
Out of curiosity - I stripped sleave+screen off of the BL-1 to remove the two internal conductors and then braided them and attached Copper Harmony RCA's. This transformed the BL-1 into a very good IC, but not as good as the stagers.
What do I mean by significant improvement? it's when I can hear a difference in either dynamics, details, image, or bass extension as soon as I play the first track.
If I have to go through several albums before I notice an improvement I do not rate that as significant
With all of the changes above there were significant improvements between each one.
Going from Stagers with Canare RCA's to Stagers with Pure Harmony would be close to a good component upgrade - they are that good.
If you are into DIY I would suggest you try sourcing some 24 or 28 gauge solid silver wire and Teflon tube - it would be cheaper than buying a silver IC and retrofitting other RCA's. Then in place of a twisted architecture - braid the conductors - it works better than twising.
Please note: I attribute many of the improvements observed not only to the IC's and speakers cables, but also to the power cables I am using which allow the components to work to their very best abilities
That's about it :-)