that doesnt really help, on jobs like this i end up with bits of paint and milky runs, is this just me?
It does just depend on the windows and perhaps the paint used.
You soon get to know which are problem windows, and any that are, just do them again, and def rinse off the glass, (Which I always do anyway)
On these georgian style windows, I just make sure I really scrub scrub scrub, and then rinse thoroughly.
As for flow rate, I only use setting one on my backpack, so its about 1 Lpm