StellarFoxy

I found this on the strat-talk forum (posted in 2011), and while there are videos of it working, I'm wondering if it isn't only half of the signal going to the amp? If anyone has any input, please let me know, I'm looking at adding individual volume controls to a guitar (along with other controls) for blending each pickup individually and want to know if this is a viable option. Thank you all in advance! stracciatella.pdf