twins or single on 23 cc with bracket?

[Old'sCool]

I have a '73 23', Hermco bracket, Yamaha 300 4S and a similar run to blue water. I ran the Yamaha OX66 250 for the first 11 years, the 300 for the last 3. I'm ok with the single and the performance is great, satisfactory when fully loaded including full transom bait-well. 118 gal tank and blue water trips allow the 1/3 rule. I think the additional weight of 2 4S would be a bad thing all things considered. If you could find 2 2S, light weight 150's, that would be a lot better. There's a calculator here somewhere that allows Center of Gravity calculations. I strongly suggest you go through that thoroughly with your favorite math whiz including all kinds of different scenarios.