If you love to troll and have ever used the “Trollers Bible” from Mark Romanack, in booklet form, then his new ap soon to be availabe for IPhones is just what you are looking for.  It will be available in different price ranges depending on what lures you use and easily updated as your acquire more baits. Check it out at www.thenextbite.tv/Precision_Trolling. Deep water trollers on Lake Erie, near Buffalo New York, will especially enjoy this for the ever changing and transitioning schools of walleye that move east to west and then back again each season.