I am pretty much a lurker here, but I'd like to add my support for a reasonable climb to the sixth switchback. My normal day on Fromme starts with the climb up the Dempsey trail to the BP, then across to Mountain Highway, simply to avoid that fish out of water feeling of riding up the pavement.
If people are going to volunteer to go up there and brush out an existing set of old skidder roads etc., then count me in.