David, Don't think about it twice, you did right!
Am familiar with Matinecock Pt. green 21...I know I can cut it
with my 4 1/2' draft, I don't and never have.
I try to develop and stick to good habits and that serves me well,
as bad habits or short cuts eventually will catch up with one.
Your captain, it would seem was familiar and comfortable with the
course...you were not.
If a helmsman, who I trust with the well being of the crew and the
boat does not have the time to consult with me and
chooses to error on the side of caution...I say thank you.