The other day Steve Cotter (who's not really human) did 1000 1 arm swings with the 40kg (88lb) KB in about 40 minutes. Steve's done a demo at CFHQ I believe.
Of course this is not possible, so this weekend I did 600 1 arm swings with the 32kg KB in about 33 minutes. In both cases the swings were chest high. I did mostly sets of 20/20.
Yes the wrokouts were somewhat longer then CF norm and the swings were not "full range", but as I believe Coach would say. Do the workout, then we can discuss it.