I've a 2012 Fender US Deluxe Strat with the S-1 switching and noiseless pickups. After a pickup swap the sound improved but discarding the S-1 switching and moving to the Obsidian Wire Gen 2 HSS harness has totally transformed the sound of this guitar. Not only is it quieter, the sound is clearer, sharper, more sensitive. You can hear each string distinctly. I just can't believe the difference this has made. I feel like this is the way that this guitar was always made to sound. I have no idea why Fender are not fitting these as stock to their US guitars.
The quality of the harness is excellent. Took a few weeks to arrive in the UK from New Zealand but no messing around with taxes.