Walker Audio Silver jumper vs Nordost Norse jumper

Hello everyone,
My first post here. Did anyone compare these two jumpers?
Just recently I went from Nordost Flatline Gold MK III to Reference 3A speaker cable, completing the task of making all of my cables Reference 3A.
Reference 3A sounds more extended (better lows, more noticeable in highs) and it did firm up the sound across the spectrum. Better definition can be due to higher speed but also the synergy with the rest of the cables, especially with my speakers - Reference 3A Veena.
Your insight is much appreciated!