I practiced Gracie Jiu jitsu from the age of 9 until I was 12. I’d like to pick it up again!

I received a two stripe yellow belt before I quit and began wrestling.I know if I walk into a gym and say I practiced when I was am kid, I would start at a white belt. I have no problem with that. I think they will see quickly though that I have retained a lot of my knowledge as I still would practice but never at a gym.

My question is should I go into a Gym and just say nothing about my past experience and start at a white belt and go through all the motions of learning things I already know OR let them now I have some experience and let them test my knowledge before I waste any time on the bare basics?

Thank you!