My rapala dt-6 sinks, I sent a message to rapala, Do I need to do anything else? The message was in the return department thing.

                     -gk

i've had a few DT's that sink. and some that float like corks. weird i know. still love the baits though.

take the split ring off the bill if you haven't already and see how much this helps. sometimes this is just enough to make the sinking baits slowly float.

also heed to Muddy's advice  ;D

That is odd. I wonder if it could be a countdown version of the DTs.