Like, grounddhog, it's good of you ian to be posting vids to be commented on. I don't think anything said has been critical, cos ways have been mentioned where speed will be gained.
If the finish is good then that technique is fine ian. You will gain time further on and by the looks of it much quicker than i did cos you have done this already. Took me around 18 months to try this particular method to increase my productivity. Fair play.
Though i would do the top frame 1st and once which gives it the longest possible time to drip before doing a final brush down.
I also studied windows before i started the following clean. After a half a dozen cleans i saw a pattern of which sides were cleaner, which windows were more forgiving. etc.
Learning where to concentrate my time is just like getting a payrise. Same money but less time. happy days!!

Waynes post sums up how it is for me now.
Good luck with it.
One good thorough scrub covering everything is essential, then a quick rinse down from the top to the bottom in any pattern you fancy so long as the weight of the water pulls any gritty bits of dirt down with it.