I like to design free-route rides. The thing is, I only do this because I see a batch of variations. And lots of people complain that a free-route is not a designed ride at all. But I always provide my preferred route. RUSA now requires at least two routes for a free-route permanent, which is what I've always done anyway.
Hoping to do one of my free route 100km rides tomorrow. I was thinking of a variation involving gravel.