ive never seen anyone using a spray bottle mate, sounds like too much effort probably! your better off with a proper windys belt including a bucket on a belt, squeegy and t-bar applicator, and in your pouch(s) dry and wet scrim.
the first clean on leaded, clean the frame with your damp cloth first then soap the leaded glass up (go over the glass twice on first clean too) then take off most of the moistier with your damp scrim, then finally buff up with your dry!
thats what i do
on maintenance cleans there after just wet wipe frames, wet glass with damp scrim then shine/buff up with your dry scrim!
one last thing mate id avoid this board and post in "Window Cleaning Issues" in the future as noone really looks at this!
all the best
GB