ST's advice is solid. If you remove the front hook (I upgrade the rear hook 1 size larger) you can bang bottom all day long with very few hang ups.

My first trip into the Q I didn't have a depth finder either. This was the strategy I employed for the 12 days I trolled. I think I lost 1 or 2 lures to snags and I ran a line pretty much all the time. I didn't have any problem hooking fish and when it came time to release them it was much easier and safer for the fish as well as myself.

I like your choice of lure. A shallow shad rap seems ideal but to keep it in the strike zone and not be afraid of losing it will be key. The removal of that front hook will give you the confidence to do that. I highly suggest upsizing the rear hook however (just one size, wide gap preferred).

The flat rap would be another likely choice. I watched a promo video of the fellas from infisherman fishing the flat rap behind a bottom bouncer. Of course they were doing quite nicely with it (imagine that ;) ). Not surprisingly I ordered one the next day..........I really like them, my biggest smally last year came on one. I think you should get one Jax, maybe a brook trout colored one ;D.