I'd love to see this with a longer window for the filter, and a larger buffer occupancy cap. at avg. 2.5 chunks it encounters 3 stalls with very low startup delay, but if you were willing to preload chunks (this is totally viable in a VOD application) then you could cut the startup delay down and have one or two more chunks ready, which presumably would reduce the stalls in this scenario even further. 0 stalls is the target in a decent real scenario.