You are right R.MD.Angler, the book touches on many different aspects of swimbaits. I have an autographed copy and Bills video. Some of the info in the book must be "tweaked" a little for our waters, but the concept can apply wherever bass live. I dont remeber the book talking about river fishing though, but I have used SPRO"S BBZ-1 smaller swimbaits and they work well in rivers. Years ago I looked at the score and decided that I had caught enough small fish and decided to target big bass. I looked at where I was fishing and elliminated all but 3 or 4 bodies of water. These 3 or 4 bodies of water had the potential to produce fish greater than 8 pounds with consistancy. Which means if there are numerous 8's there are several 10's and and a few bigger. There is an equation for that. I decided to leave those dink factories alone and concentrate on those 3 or 4 lakes. I think that was a step in the right direction. I did gamble last year and fish a couple of old farm ponds and whacked a couple of 7's and 8's but still not the fish I was looking for. No matter what lure you are throwing, if you are after big bass, you are wasting your time fishing waters that do not yield big fish with some regularity. If you are going to gamble, why not put the odds in your favor. You may already be doing the right things, but you are doing then at the wrong places.