On paper, the re-routes make a lot of sense. The Crooked Lakes re-route eliminates the obnoxiously steep climb heading north from Penner Lake, while the Lindsey Lakes re-route replaces the fall line trail that leads down to the Grouse Ridge Trail. The existing LL descent is fun for advanced riders who like a technical challenge, but it is a hike-a-bike for others and a hike-a-bike for everyone heading up. The USFS just received word that they have received additional funding to work on these projects.
I do wish the USFS would cut the large fallen trees that have blocked many Grouse Ridge trails for years now.