I'm having trouble finding the words that express how much I hope this is true. I tend toward hysterics when I read that a school requires a CV submission because mine is so incredibly weak. I just want to read and learn stuff! I was a timid undergraduate! Forgive me for missed opportunities!
I made quite an impression on (and was practically adopted by) my undergraduate department. My LoRs are in the bag. I have had a lot of help and support from my mentors over the years, and I am confident that I will get my WS and SoPs where they need to be. But my GRE and GPA scores are adequate at best, and I always feel like a CV will side with the GRE/GPA to weigh my application down. I want the work to really shine for itself; my CV is nothing but further proof that I just waited tables and drank whiskey through all the parts of college that didn't require me to read and write critically.