We're talking with the man behind the "Troller's Bible" and Precision Trolling app this time on the Off Shore Podcast.

Mark Romanack of Fishing 411 has been an Off Shore Pro Staffer almost since the beginning of the company and he's been intimately involved in product development and testing.

Mark talks about the finer points of trolling...including lead length, lure depth and speed.

The veteran angler also discusses the "50 Plus Two" method of depth control, the importance of calibrating trolling reels and whether rattles can make a difference in your catch rate.

It's a very interesting conversation this month with one of the best trollers on the water.