Matt,
On the windows the results were fine, not a spot in sight.
The kitchen door was another matter though, with the WFP it came out crap! Spots everywhere
The reason for this being that it is in a poor state of repair and desperately needs a coat of paint
a lot of bare wood (is, or was, a varnished door) due to weathering.
Steve,
I do get anal about these things
Or pedantic perhaps, I enjoy doing time and motion type experiments, sometimes you may feel you are really flying with the method you are using to work with.
But you drag out the old stopwatch and compare methods, the results may often surprise you.
Ian