I am 1.80 and can easily bang my
head. But I rarely do. One gets used to watch the head. I can aldso bang my head in every bulkhead as the doors are just too low but it happened maybe three times so far.
I would not raise the bimini just for that reason. I prefer the nice and flush lines of the original bimini.
We had a raised
canvas bimini in our last
boat and I did not like it. The clears in front were becoming blind so we removed them which led to a very wet and windy
Cockpit.