Which bet in Vegas-Byrd to win or OVER 9 rounds?

[SMKR]

In Vegas and the Chris Byrd vs Shaun George fight is about to go off- which bet should I take? Byrd to win OR the fight to go atleast 9 rounds?

 

[Tam-Tam]

Under

 

[SMKR]

UNDER 9.5 rounds for +400?