Hi Perthsleeve,
Welcome to the forum. I am getting sleeved on Monday and on opti. I have to say it is not as bad as I thought. My saving grace is the low carb vegies at night and I have a bar as well as I like to feel like I am eating.
Come over to the July sleevers group. Lots of recent info on opti and people pre and post op. You will find it under the sleevers monthly tab.
cheers
x Zenna