135 on a 9.2A
I'd recommend going with the larger 135 but be sure to get a foam or rope luff. That ensures better shape when you roll it up. We were out in what had to be 20 knots gusting to over 25 with the sail rolled up to about 110%. The shape of the sail amazed me, as I previously had a boat with a 110% with no foam luff and it's shape reefed was awful.
I was lucky, as my boat came with what I consider an idea assortment of sails. New main, 135 roller with foam luff and an asymmetrical with a sock for the light stuff.