School planners now say about 16 percent of students — some 8,700 — could be shifted to different buildings under redistricting recommendations released last month. The growing pains appear to be most acute at elementary schools in the county's northern and eastern reaches and it's expected that students at 11 of the county's one dozen high schools could be on the move. In all, 16 schools are projected to have more students than they were designed to comfortably accommodate.