Yes, hard and soft bottom is much easier to see on the color screens. Units like the Vexilar Edge 3 even have a hard bottom indicator right on the screen.
It’s easier with color units in my opinion. Hard returns show up as a different color than soft returns, making the detection of hard bottom a piece of cake.
No, I don’t stock them any longer. I have to special order them.
I do have the LMS-520C without GPS in stock, which would be a great choice at $459 shipped, with 200khz transom mount ducer. It’s a nice setup. I also have the new Humminbird 917C with the 7-inch screen. Great looking setup as well.