Well it looks like im a little to late it seems they have discontinued the precision trolling books just as im looking for one. I understand they are coming out with an app instead. I dont want to use my phone or an ipad they run out of battery you know.! you can find them on ebay for the starting price of $100 i even seen a book in my searching going for $750. i think thats crazy. im taking a chance here by going to walleye.com but maybe someone here can help me out, someone has to know where a guy can get one without going to extremes right!?