[cyclistbrian]

I put it one in a badly bellied 1970s Epiphone all laminate. he JDL is a neat little device. Over several days adjustment it really did a great job of taking the belly out. It held too! But that guitar was bellied enough that the amount of pressure I needed to put on the JDL killed what little tone this beast had (and it was not much to begin with).

I think that if the guitar was less bellied the JDL would have stabilized things without choking off the top. That aside, it help me turn an absolute wall hanger into a playable instrument. I'd have no reservations about trying one again if I was trying to save another guitar for which repair costs exceeded the value of the instrument.