Liked your post Mike--I use the same rain gear, it's light and easily packable.
Last year we were up North for 10 days on a Moose hunting trip, 6 out of the ten days it rained, 2 days it snowed and 2 days of sunshine.
We had no choice, we hunted in the rain every day.
I like when it rains, the animals tend to move in open fields & trails/roads right after the rain and even when it drizzles.
Mike the Porta Roof is great, I use one myself--but if there's blowing wind then it doesn't help that much because the umbrella has to have enough distance from you so you could stand & shoot the bow. However if you sit and shoot you could of course bring the umbrella closer to your head and that will work alot better.
Just 'don't' leave it out when you're out of the stand, I did once--and the heavy winds altered the shape in short order .