Another consideration, aside from the ability to motor into a head wind
, is can you tow your mother ship your dink.
If you have a mechanical failure it's really nice insurance
knowing you can put the dinghy
on the hip and maneuver into a port and repair dock
For that reason I would recommend a 9.9. IF you can manage the extra weight.
Sent from my SGH-I547C using Cruisers Sailing Forum mobile app