1 JBGretschGuy 6 months ago I had always been told that a Boss TU tuner pedal had a buffer built in, and it's first in my chain, so that SHOULD be good. Yesterday, I built a couple of the Pete Cornish LD-1 style buffers and dropped on in front of my pedal board. WHOA! Big difference in presence and clarity. I tried the other one at the end of the chain, and just a tiny difference. But I noticed it will help take the dullness out of even just a 20 foot cable. Essential piece of gear!