#1
does anyone know if this works?

http://www.guitarcenter.com/Planet-Waves-O-Port-Guitar-Tone-Enhancer---Feedback-Supressor-430853-i1540822.gc

it says it make sustain longer and harmonics better or w/e...
Gear:
Dean Flying V
Franciscan Model A ClassicalGuitar
Ibanez Acoustic
Dean Acoustic Bass EABG
Mitchell Mu-70 Ukulele
Line 6 Spider III 30W
Korg Kaossilator
Yamaha Keyboard
Boss Metal Core
Fishman RareEarth Humbucker
#2
I would imagine it would give you a small amount of improvement. It depends on whether or not you can justify spending the 30 bucks. I'd give it a try.
PRS SE Singlecut
Bogner Alchemist 112 Combo
Dunlop Classic Crybaby
Martin OM-1 and Backpacker Steel String
Seagull

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#3
Got one in at the store that I work at. Between me and the three other guys in the store, we couldn't hear a difference in the quality of the sound. Perhaps we just don't have the ears for it, but I don't think its worth the $30.
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