This has been a question that has came up many times in the past. With today's market on detectors being stagnated, it seems the after market companies are the ones doing the growing....designing new coils for machines has been a big hit for them. Companies like DeTech, NEL, and some others have really brought some life back into older machines. So I was wondering if anybody knew of any of them making coils for the Whites 6.59 machines. Everybody has always wanted a DD coil for them; to my knowledge, the only DD available for them was the mini shooter made by Whites and that a lot of people didn't like that particular coil. What I would like to see is a 10x12 or 12x13 side DD coil for the 6.59 platform. There might be some out there for all I know; although I've not ran across any as of yet.