(thread resurrection, planning my first dyi x gps)
say, if i wanted to maximise riding in the daylight now and ride a 600 as 300+300 over two days, say 7am to 7pm - is this allowed? the total number of hours would be less than 40, however interim virtual control times might be out of time during the night hours.
Remember that on a DIY ride you nominate the controls, so the concept of virtual interim controls all being measured at 14.3kph doesnt apply. You only have to arrive at each of your nominated controls in time, you can leave when you wish and in your example you would leave your 300km control around 3 hours out of time.
I believe that the trick would be to select your first control point on day 2 far enough in so that you arrive still within time.
For example you control at 300km, which closes just shy of 21 hrs so thats 0400 day 2
If your next nominated control point is too soon (for example lets just be silly and say 310km) then youre goosed.
However if your next control isnt until much further (or farther as nobody in AUK would say) like around 450km then it closes in circa 31.5 hrs (Day 2 1430) so youve got 7.5 hrs to cover 150km, and the same effect applies as the distance increases and your de facto minimum Day 2 speed reduces.
I think each DIY organiser can insist on extra controls (Ive heard every 100km talked about as a guide) but Id like to think that in the current situation that your local DIY organiser would cut you some slack and be OK with a ride that had a big gap between a 300km control and the next one (and in extremis possibly even no controls at all between 300km and 600km).