Appointment with surgeon

Since I am still debating parts of having this surgery, I decided not to wait until just before surgery date to meet with surgeon for my barrage of questions. Made an appointment with Dr. McDermott on my 32nd birthday. Questions I have decided are decision makers:

Why would you have to switch to a bypass mid-surgery? (he mentioned having to sign a paper giving him permission to do this in life or death situation)

Have you ever had to do that?

What if down the road I get stomach cancer or esophogeal erosion? Where is the tissue for repair going to come from?

Have you had anyone complain about decreased cognitive abilities after surgery?

How often do you have to treat patients for severe acid reflux post op? Have you had any issues with post op esophogeal erosion or GERD?

Can you guys think of any other decision makers? I have a long list of other questions too, but those are for after the decision has been made. I will save them for pre-op visit. Stuff like:

How much can I lift and when?

When can I start using mederma on my scars?

Bathing and showering regulations

How long will I have drain in etc.