No idea. He has never been on bottom long enough for me to get a good evaluation of him in that position. I've seen him in the Ironman twice and he steamrolled some very highly ranked guys, but even against those high ranked wrestlers, he spent next to no time on bottom. Even in his infamous loss to Austin Desanto in the State Finals, Lee was let up immediately by Austin when he got to the down position, to start the period when Lee chose down as well as post takedown.
I think he will need to get some experience down there like a lot of top recruits. However, unlike some guys like Micah Jordan, it clearly isn't a glaring weakness right now.