the day that I done 62 I was working with the trailer system, I use 100m of 8mm on the reel and that day consisted of 3 cul-de-sac's all beside each other and one stretch of road linking those 3 to the last (4th) cul-de-sac which has 14 houses (of which I do 13). Access to all houses apart from 3 of them is good, the 3 in question had left the gates open for me that day also so again I had no problems with them.
I was out for 12 hrs, had half an hour break at lunchtime and another half hour at around 4. So in all 11 hrs work = just over 10 mins per house. Bear in mind that only 5 of them are detached and the rest are semi-detached and of these there are only 2 different house styles making them very routine and ultimately easier and faster to do (15ft pole reaches everything apart from 4 wndows on the whole run).
Granted it was a hard day but considering the semi's are all £6 and the detached are £12, £15, £8, £22 and £14 the total for the lot is £353 thats not bad for 11hrs work.
Finally the last 4 hrs was a bit slower with me tiring a bit, mustn't forget that one of the lads brought me another 400ltrs of water at lunchtime (brought 600 in the morning). Used about 900ltrs all day.