If it wiggles a Flatty will grab it!
Caught my first decent flatty on a soft plastic IN THE EARLY 80s, it was an orange mr twister.
Walked into a spot near some bridge pilots where there were a half dozen other guys belting the middle of the channel with big baits...
Two casts into the downstream side of the nearest pylon, whack, I am on, land the fish and start to go home, you should have seen the reaction from the bait fishers!
I was converted!
Have not looked back since....
Cheers
Chris