I'm going thru all my pedals trying to decide which ones to keep and intergrate into a rack or pedalboard setup. In testing out the Line 6 boxes, It seems like these make my tone go brittle whenever they are in the chain, fx on or off. Is it just me or what? I know these units, especially the DL4, make it onto a lot of pro pedalboard rigs and I am impressed with the quality of the fx available, but my setup sounds much better without these in the line. Anyone else experience this? Thanks, Kenny M.