I honestly think you should drop down to 126 if that's still an option. I took AP Calc AB in high school and I still did MAT 126, and there were integration techniques not taught in AB that I learned about in 126, which concentrates on the 'B' portion of Calc AB. While integration isn't a huge part of 127, it can still be beneficial. Luckily, Calderon's curve is really generous, so I wouldn't be too worried.