The first part of this hike, from forca di Presta to Pizzo di Diavolo has alway been one of my favorites. The views are incredible and the people are sparse. I have written before about choosing your hikes in the Sibillinis, and for those of you who want to check off the tallest peak in Le Marche, you can start from either this trail's beginning or its end. Obviously if you do the latter, you will do this hike in reverse and end up doing 8 summits over 2,000 meters and you are tougher than me, probably.
We started this hike at 0835 from forca di Presta above Arquata del Tronto to the southeast and Castelluccio to the northwest. At 1600 meters rounded off, you have only 800 meters of altitude gain to reach these summits (not counting the saddle descents and re-ascents of the subsequent peaks which are not difficult). Head on up to the little rifugio Zilioli and take a left.