Depth vs. Cable Type

I've built a pair of interconnects from my preamp to my power amp. I've used a technique that I found on the web in which a strip of mailing tape is used to space a pair of strands of 20 gauge silver wire (from a jewelery supply house). The mailing tape is the insulator and the silver wires are soldered to gold interconnects. I've modified the design slightly by adding a series capacitor to form a high pass filter into the power amp. They are extremely simple and I think they would be a purists low budget dream but I'm not hearing the depth I used to. However, I'm hearing details that I think were missing with my standard cables so they can't be too bad.

I know this is an unconventional question given the unique qualities of the interconnect but does anyone have a feel for whether the depth will improve as they break in?