I have used the 12-14′ trolling rods that are on the market, and find them to be a bit challenging to fish effectively. A rod of that length has to be pretty beefy to avoid becoming a buggy-whip.
The Mitchell 14 footers do a good job of pulling leadcore, but for a more finesse technique like bouncers, you’d want a medium power, moderate action rod to be able to load up a touch before the fish senses your presence.
I use St Croix Wild River 10.5′ rods for a variety of trolling applications, including pulling spinners on bouncers. You can find them at major retailers, and you can also order them from Dean @ Everts Resort/Deans Tackle Box.