Question. May not be in the right place. Has anyone ever installed a set of Bartolini jazz pickups into the Essex jazz bass. I talked to Kurt (rondomusic) and he told me that the specs for the pickup cavities for the Essex were 3 5/8" x 3/4". I checked the Bartolini site and they appear to be the same. If so, tell me any lessons learned, frustrations with install, overall results. Any info you can provide will be appreciated.