I'd be delighted to have 600 cfs to row my 14' on Brown's if it'll last til August. I remember once when it was 600 cfs watching a petite guide chica load up and push off on an outfitter's 16' gear boat, mounded with about a ton of gear, starting on the Milk Run and supporting a family's multi-day trip through to Canon City. I've never complained about 600 cfs since then. If she could make it on that boat, you'll be fine.
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse