A while ago, I bought a really nice used VooDoo 'Large' pedalboard with the 8-Loop Switcher from GC. It came with an assortment of Lava Patch Cables that were short lengths to run from the loop switcher to various spots on the board. I set everything up and it worked. (Great board / Great Loop Switcher.) Some time ago, I was playing through the rig and my amp seemed oddly 'quiet.' I kept cranking the master higher than it had ever been and it had no Punch and no Balls. I was convinced it was the amp - until I bypassed the board / loop and plugged straight into the amp. BAM! God's Tone. After trouble-shooting ALL of those Lava cables, I found that one of them was near total failure and most of them were sketchy at best.
So - I ordered Mogami Patch Cables custom made for all the specific lengths I needed to run clean and tight under this board. It cost a bundle. And the amp sounds a big and loud and clean through the board as when I plug straight in the front end, bypassing board entirely.
Moral of the story - cables matter.
Addendum - these were the 'you assemble it' Push-Fit Lava cables. Pure Trash. Maybe budget wire with Budget Connectors soldered professionally would have yielded the exact same result as the top-shelf Mogami cables and connectors. But at this point, the difference between custom cables built with budget wire and connectors vs. custom length cables built with Mogami cable and connectors was really just a fraction of the cost of the custom cables in the first place. In for a penny, in for a pound. If you are ordering the Filet Mignon, you may as well have the Wagyu.