Pish-tush & tosh to all doubters!- this device really works!

[Don't kno how tho??]

However, as someone earlier pointed out, it may be possible to achieve similar effects[affects?] with a 'G' clamp- so I'm gonna try one out at me next gig.

BTW- re my orig query, does anyone use a 'Groove Tube Fat Finger Guitar Sustain Enhancer'?

p.s. they DO work on non-electric acoustics!