I took the SAT in the fall of my Junior year after intensive preparation over the summer with an excellent tutor. I was happy with my score of 2160 (math - 700, reading - 720, writing - 740) because I thought it was a good reflection of my ability and my level of preparation. I was also happy that each score was above 700. I'm not sure that I could score any higher, although it would be nice to join the "above 2250" club.
I'm a straight A student with a demanding course load (4 AP course in my Junior year; 3 planned for next year as a Senior) and my SAT II scores are reasonably good - US History 780; Spanish 710; Math 1 - 740. I have strong ECs with excellent community service and activities demonstrating leadership skills (just elected President of Student Council). I think thay my teacher recs will be strong as well.
Here's my question: I'm interested in attending schools like University of Pennsylvania, Georgetown, and Columbia. Does it look bad to admission officers that I only took the SAT once and didn't try to raise my score?