 that you've got the proper airflow in that attic, that you're not blocking off any of those areas. When in doubt, keep it back. If you need to extend out those baffles and staple new ones up there to make sure that you've got soffit ventilation coming in, make sure that you have the proper ventilation. Because if you don't, that can basically negate the insulating value up there because you have an attic that's too hot, and then it could reduce the life of those shingles.