I use Orcas for all my rod holder/trolling needs. Everything from trolling the flats for small mouth, walleyes with a number 1 dipsy, and trolling huge cranks at 5mph for muskie.
The only thing about the Orcas is the way they release. You have to pull up on the front/outboard side to get them to open, its not a problem but its not intuitive. I've had to school guests several times as they naturally want to pull up either evenly (front to back) or at the rear.
I also prefer the push-button mounts they come with, rather than the twist and turn you get with the power locks.
I got mine at Sail on sale..lol