Probably best to stick to the group you are there with and just do the associated laps. Trying to coordinate the switching if groups could become a PITA especially if the non-Italian SCDers jump on the bandwagon and try to tag on the back of the Italian (non SCD) group.
I'm either meeting the Northern convoy or driving in with Blondie and the SCD mob, it depends on the timings. However, the drive over from mine to the likely SCD meet point is better than motorways to the Services. Whatever happens, I'll see you all at some point!
Without giving anything away it seems weird to me that the Southern Convoy is travelling almost directly past Oulton and then north another 15 miles or so to meet the Northern Convoy.