Hi Marydean, i've been using the MB for a few months now although i had a break for a couple of months due to prgnancy and then sadly a miscarriage. I found that for me it doesnt really show when i'm in transition but really only when i'm actually O'g. I also use it first thing and like you i always wait for the first 1 to dry then do a 2nd check just to be sure and mostly although not always get the same result 2nd time round.
Elena
Oh and my ferns are usually pretty short - i just put that down to my age and possible dwindling fertility.
Hope that helps