i also been researching "floating pup " replacements for my archtop....... and i agree 100% with what alan said
Alan Ratcliffe wrote:
That's a floating pickup (attaches to the neck). You can also use a pickguard mounted pup.
Look into the Benedetto B6, Lollar Johnny Smith or on the less expensive side, the Kent Armstrong.
and remember with the kent armstrong ....... be aware there are the cheaper "eastern made factory" ones or kents armstrong also offers top end handmade ones
find more about his handmade ones (various options and models) and how to order them from www.archtop.com also some great info on floating pups.........