Light sabers, they're over 9000!
It could be just me but I think Genkishi's armor looked like its melted in some parts, probably from Tsuna's X-burner hyper explosion. But did he really think Yamamoto won't improve? Genkishi is gonna get raped hands down.
And, Tsuna's punching power hit 300 000 FV? Wow doesn't that mean each of his punch has the power of a X-burner? I think the FV of his X-burner when they were in Melone base was around 300 000 FV.