I just bought a second G6 for my brother, wondering if 4.6A, B, or C is the best option. I have mine at 4.6A, I read here that 4.6C had a slow loading issue or something like that. I don't remember why I skipped 4.6B. Actually there is no link to B on the handheldsources site anymore. I would go with C but I thought I read some negative impressions about it. Any opinions? Thanks a lot.