zilog – people will vary but I used to do 30 minutes steady road riding before – enough to get warm and a bit of a sweat on but not tiring as such – followed by about 5-10 minutes on the erg at a steady pace (starting to get a bit breathy – say I was doing 1:33 average for my test, I’d probably be at around 1:50 – 1:55 for the warmup) with two or three 15-30 second bursts flat out.
tiggs – the computer constantly works out how fast the fan slows down between strokes and then uses that to calculate how hard the fan is set. It then adjusts the score accordingly – so if you want to get a good score at a low resistance setting, you have to really move the handle very fast (it’s a good technical exercise, actually) or conversely, you don’t have to move it so fast at a higher resistance setting.
Resistance that feels closest to a rowing boat (ish because even that is very variable depending on conditions and type/size of boat) is usually around 4 or 5 (135ish drag factor) – that’s a good balance between it being like lifting heavy weights (less aerobic) and being too light.