I have a friend with a Peterson Islander 40, he draws close to 8', he always has issues going thru the channel up there. He has bottomed out more than once from what I understand in that part of the channel.
So needless to say, when we went thru there 3 yrs ago, spouse was totally freaked! we draw 5.5' and doing so mid tide did not worry me, but her......oh boy!
She drives me boat,
I drives me dinghy!