Been a bit busy lately, but here are some results from the bike tests:
VO2 max
Kelly 6.82 l/min, Stu 4.80 l/min, Martin 5.17 l/min, Mark 3.55 l/min.
Anaerobic threshold (as a % of VO2max)
Kelly 49%, Stu 50%, Martin 71%, Mark 80%
so, in l/min..... Kelly 3.34, Stu 2.4, Martin 3.67, Mark 2.84
Apologies for the delay. With all the training (or lack of) since, the values may be quite different.