Agreed, you'd have to fire string input rates, and defer the underlying update until either enough buffer has entered to warrant a mid-point sync, or input has

Agreed, you'd have to fire string input rates, and defer the underlying update until either enough buffer has entered to warrant a mid-point sync, or input has paused for a decent length of time. (say 10s) For 'hardened' browsers I'd recommend a visual indication of this timeout (a pie chart which completes like a clock at a fixed rate while paused is the first concept that I think of).