More commonly referred to as 'Race Eater' nowadays, but worth noting that this is in fact the original 'Happy Camper' problem. Sit start with obvious sickle-shaped jug (as for HCT/NSWM), then traverse immediately left to big undercling. Instead of continuing left into 'Butt Gravity' (Race Eater), climb straight out the lip via crimps and sloper to join the 'Happy Camper Traverse'. Finish as for that problem.