Questions about H12N firmware and Anydvd

Hello , I have a couple of questions regarding the H12N:

1.Which firmware gives best read/burn quality? TDB’s UJ12 or latest lg official UL02 or maybe other?(I understand I can patch any of them to unlock the rip limitations.)

2.Can anydvd (or similar software) save me from using TDB modified firmware? Do I need both the region free firmware and region free software for optimal results?

I think AnyDVD is enough for region free. I use it.