Ford or chevy?
There is no right answer, just lots of opinions.... so here is my:
I don't care for the look of a bb or dsb in the display so I went shallow (0.5" or so).
I wanted the benefits of a dsb, so I installed a remote deep sand bed plumbed into the sump. This can be as simple a placing a bucket inside the sump, filling it with sand, and running a powerhead which pump water across it's surface before it overflows back into the sump. If it creates problems (as some have reported) it as simple as removing the bucket.