WHY did you choose VSG?
If you will do a search on this topic, you will come up with hundreds of really well thought out answers. I think it might be worth your time to check that out. If you have any other questions based on your research, don't hesitate to ask. The search function is on the top right on the blue bar, it can be hard to find on this site.
I had a heart attack in Feb. My cardiologist said no to the RNY and I didn't want it either. The re-routing scares me. He felt it would be too hard on my body. (we are rushing this surgery for insurance purposes and he wants to be very cautious.) He wanted me to have the band. I'm not comfortable with the band. It seems like most people do well at first but then at about 3-4 yrs. out they start having issues. So, that left the sleeve. I feel it's the best fit for me. It's going to be slower than the RNY but in the end, I should have the same results.