I just picked up the helix 5 with DI . I don't have SI . Never used 1 before do think I will be able to find them?
I really doubt with DI you will be able to find these deeper beds as they are dishpan shaped, with SI they need to be off of to the side to be able to see them. With 2D and Di it would only look like a divot on the bottom or sand dune no real way to see the dishpan shape..