Most long-distance trails — Scottish, Alpine, Mediterranean, Japanese — were laid out on old droving, pilgrim or coaching routes. The gradients are gentle, the surfaces are mostly runnable, and the underfoot is almost always a good compromise between speed and interest. That makes them, quietly, some of the best supported-run venues anywhere.
The catch — as any runner who's tried to plan one solo knows — is the logistics. Small hotels don't want a soaked runner at 4 pm asking to check in early. Bag transfer companies want to know your kit is at reception by 8 am. Nobody wants to run 42 km on day three because the only bed in the village was full.
That's what we sort out, in whichever country the trail runs through. You bring the trainers. We book the beds, move the bags, and set the daily stages so you can actually enjoy the running.