I would say that if you start with a 10' deep lure; you're starting too deep for the spring season. Skip once told me that he believes that most people fish too deep. I made my spread more shallow and increased my hookups. In the spring, I run one side singles and one side tandums off the boards. I'll have my farthest (closest to the board) line out 100' with a one and a half ounce lure. Second line out 80' with the same size lure. Third line 60' with a 3 oz. lure. Fourth line 40' with 4 or 5 oz. lure. Fifth line 40' with a 6 oz. lure. Often, it's the two lines closest to the boards that get hit the most. In fact, you want those lines to get hit while you are putting out the other lines, or at least before you get all the tandums on the other side of the boat out.
In the fall, I fish just a tad deeper off the boards, and on some days, I could kick myself for not staying with the above spread. The four gunnel holders are run deeper (about 18-20 ft in the spring) to pick up those fish that have been scared deep because of motor/boat noise.
I'm sure others on the board who consistantly have more hookups can weigh in and help you more. Best of luck; 5th (Marty)