Built by Dan Erlewine with ABR-1.
"Dan Erlewine says in the ’60s he wanted a Tune-o-matic bridge on his Fender. He hoped it would make the guitar tune better.
Chances are, if he'd just lowered his neck pickup, the strong magnetic pull would lose its effect on the bass strings and the Strat would play in tune. But Dan didn't know that back then. He’d recently built a Strat-style guitar for Jerry Garcia, who wanted an ABR-1 bridge, so Dan was in a Tune-o-matic mood.
He ground the tailpiece down to practically nothing to lower it for a workable string angle over the bridge. The result worked fine, but looking back on it Dan wishes he'd left that valuable Strat alone!"