When hunting old home sites which coil selection to use?

[maxxkatt]

I am using AT Pro and have the stock coil, 5 x 8" coil and Nel Thunder. The old home site is in a wooded area pretty thick with trees but about 2-3 feet between trees.
On the initial search which coil should I use. I think I should use the stock and maybe 5 x 8" (if find the site is trashy) and then after digging and removing all signals go back with the Nel Thunder. Or should I just start with the Thunder?
Any ideas based on your experience would be helpful.

 

[Skillet]

Yeah, depends on the junk. These sites tend to be thick with junk iron.

I like to run with no disc at first, loads of nails etc in the ground will sound like a machine-gun. Then you want to go small and slow in the heavy junk.

If relics are what I'm after, I'll disc out small iron and dig everything else