if your willing tell us where your located..it,ll help us help you.if your close to somebody they might be willing to stop over in your woods and show you what to cut.
YOU WROTE: I have maple,aspen. oak. ash, basswood and ironwood in my timber
if it was mine i,de cut the ironwood into firewood and i,de cut every tree.i,de also get rid of the aspen.next,i,de work on cutting the junk oak,ash and basswood..i,de think about thinning the junk maples or any maples that crowded another maple.
the maples you plan on tapping need room to grow and develop there crowns.
as has been already said.when,your cutting trees be careful about hitting the maples you plan on tapping.you don,t wanta break branches off them or knock bark off them.
plan ahead and make room for each tree to fall as you cut.i start with the smallest trees first and go from there.