starting out, try and give yourself some extra space. id let the board out 75 feet or so, and run one line almost all the way out to the board, and the other about half way out. Make sure whichever line is running deeper/shorter is inside the shallower/longer line to avoid tangles on strikes. Once you get the hang of it, you can bump the boards out farther and get more lines out with confidence. We run 4 a side for our brown spread without any issues.
Also, stay away from the cheap stick style releases and get some of the amish outfitter or offshore planer clips, way less tangles