I think that spreading them out works the best. This is because pike are loners and they don't school. If you are spreading them out, you make your chance of getting pike higher.
This also works because if a tip-up in a spot keeps going off and you get a pike in that area a lot more than the others, you've found a kind of pike highway. All fish sort of have these highways. Then, if you find this highway, plot the points on a gps and move the tip-ups over to that area. Eventually after a lot of work, you will have the highway plotted, or "paved" and you will know how the pike come through at that cove.
This has worked for me in the past, try it if you want to.