the downwash is a major consideration, but, as when the Sea King replaced the Whirlwind, you learn to cater for it.
There becomes a point though that the rotorwash (let's avoid using key words, shall we?) becomes too fierce and unmanageable. There's only so much positioning of the rotorwash that can be achieved when it's that strong. If the 101 is chosen, it'll only be a matter of time before someone is blown off the cliff they're clinging to. No doubt it'll be chosen though because it's got a nice cockpit.
