I don't understand why people don't want to do a surgery prelim. Is it the the perceived work hours (only 16 hour shifts now), or the perception you will be scutted out? You are going to be working in an OR for the rest of your life. I did a surgery prelim and am thankful every day that I did. Sure I worked my butt off, but you will do the same as an anesthesia resident and probably as a prelim medicine resident as well. I did more A-lines, central lines than any of my fellow CA-1's. I actually was in the OR a lot (which I realize is program dependent) and doing the cases. I took care of surgical patients, which is what you will do as an anesthesiologist.
I guess my point is: surgical prelims are great and I wish people would consider them more. IMO
Plus you won't look like a lost puppy trying to do a central line on day one of your CA-1 year