In this description of climbing at Indian Creek, south of Moab, Utah, these climbers say you need ten or so cams of each size. Wow, set aside some moola to fill out your rack.
“…the parallel nature of the cracks almost completely eliminates the use of nuts….In 2008 our rack consisted of four or five of each cam between Lizzy and I and we ended up borrowing around ten more of each size from friends. It was nice to have fifteen of each size but it was really overkill and heavy to boot. There are definitely climbs at Indian Creek that require ten or more cams of single size.”