My 110 fogs up all the time in cold weather but it clears after each run and doesn't seem to cause any permanent damage. Doesn't bother me, I glance at it now and again for pace but don't actually look at it that much when running, more interested in the stats afterwards. Can still make out the readings if I have to.
Kezzule, I returned to running after 7 months of medical treatment and tbh the sheer joy of being able to get out there and run again more than made up for the lack of fitness and stamina. Just start slowly, it will come back. I also did a parkrun every month or so to measure my return to fitness. Good luck and enjoy!
I looked at this myself as I live locally, never heard of it before. The route is more or less the same as the Kingston breakfast run/Kingston run challenge but in the opposite direction. The first section will be nice, good views of HH and along the river into Kingston, after that it's a bit dull just alongside a fairly busy road (hence the early start). Nice and flat though.
I live in Kingston and it was all very straightforward. Trains are frequent, take your time and get a seat. The pre-race routine was basically the same as any other race just on a bigger scale - drop your bag off, queue for the toilet, queue for the toilet again, line up at the start. Wherever you stay in london there will almost certainly be other runners on your train. I got to the start about 9am and had plenty of time. You'll have VLM's info coming put your ears by then so don't worry and enjoy!