Just wondering if anyone has tried the 13 ultimate coil for the DFX on the V3i? I know they are not tuned for the V3i but neither were some of the early coils for the V3i and they did well .Just a observation of good words for the 13 ultimate. Might be interesting if some one has one to try it out on the V3i and report back how it does especially in in single freq. situation use. Hearing that some are getting very good depth on coin size finds. Might prove to be a great field hunting tool seeing how not many are real happy with the 10X12 SEF and the way it is working out. I sold my 10X12 looking to get a white one ,it looks 2 have been a mistake it did fairly well in field hunting. still waiting on seeing better results b4 i buy another and was looking at the 13 possibly. Thanks H.H. Yazoo