Late blooming prospect watch: american heavyweight Franklin Lawrence, potential?

Since dropping a very close decision to Oliver Mccall, he's been on a 5 fight winning streak. Knocking out Lance Whitaker, and knocked out Jason Estrada, Estrada had never been stopped, he gave a tough fight to Adamek, Adamek couldn't stop him and neither could Povetkin. Lawrence did. And then in a stay busy fight, battered and stopped very tough and durable Jason Gavern. Estrada is a solid top 20-25 heavyweight, so Lawrence atleast proved he's a solid tier or two above him. Only downfall is that he's 36, how much that will matter remains to be seen. I think an eye should be kept on him nonetheless. His record is 17-2 (12KOs)