DD coil in high trash area

Hi all, I am new to this forum so please pardon my ignorance, my Question is, I recently found a beautiful 10.6 grammer in a very trashy area, should I stay with the mono coil and dig everything (which would take up plenty of precious swinging time!) or purchase a second hand DD coil and use discriminate? I use a GPX4500, would the DD coil be as effective as the mono? some feedback from you knowledgeable folk would be most welcomed, cheers

I would just try to dig all the sounds..

"mono coil and dig everything"  its a pita but its gotta be done. Dont use disc, very high chance of walking over that  deep / faint 20oz piece and not hearing it.
Id stick with mono.

thanks for the replies, mono it is then, like they say, "no pain, no gain".