Hello everyone, this is my first post on the site and I hope I can get some help.I have an Whites IDX pro. Love the detector but I have got to do something about the depth.I've been looking at the coils on the market for the 6.59hz coils. I know the 5.3 coil whites has out will work on the detector but the depth is worse than the 9.5 stock coil.Any help would be great.