Are your "non-polarized" capacitors installed backwards?

[J0K3RX]

A lot of you may not be aware of this!? For argument sake.. Yes, I know this is not exactly positive and negative polarity but more having to do with impedance... Never the less, very dramatic differences!

Easy way to check your caps

[PRR]

Yeah, if you hold onto small value caps, nothing either end, while playing.

[Electric Warrior]

http://www.blueguitar.org/new/text/threads/from_adam/components/mallory-outer-foil.pdf

[Gus]

another link http://www.aikenamps.com/index.php/where-to-connect-the-outside-foil-on-capacitors