Re: CWS paper

So the moral of the story seems to be that with the new benchmarks `both' is
a tie with `call'. I.e., 7 got faster and 7 got slower, but none by very
much. I'm still confused about the slow-down. I suppose it could be `luck',
where some heuristic just got fooled, but I would have thought that more
contification was always better.