Clif,
The depth is there I think, just have to learn how to know you have a deep signal and know what to listen for. With the 8 inch Coinsearch coil and the Sunray S 8 we are getting 10-12 inches, but these are faint signals that dont show the correct numbers and the tones are weak, but with the Sovereign wiggle will know they are trying to climb.
We run Sensitivity at the 9-11 o'clock position, no notch, no or very little disc and go slow and listen close with a good set of headphones.
I used to have a CZ7 and it has depth, but not very good ID as it ID a lot of junk as coins and deep coins as iron, that is why I dont have it and have 2 Sovereigns and a Explorer. I have got deep coins that 2 differnt guys with CZ couldnt get a signal on, so I feel the Sovereign is deeper seeking and beter ID.
How long have you had the Sovereign?? It took me a good week to feel comfortable with it and a good 2 weeks before I was digging some real deep coins that the others couldnt. I am sure glad I didnt give up on the Sovereign or I woiuldnt have a large collection of silver and IH the last 5 years.
Good luck and hope you be digging some deep silver.
Rick