In the UFC, HK's arent used that frequently to stop opponents but in Pride (and other organizations that have fighters with better stand up skills) HK's are used all the time. Cro Cop uses a LHK to stop his opponents on a fairly regular basis.
Although he lost, I think Forrest did pretty good considering he was fighting a guy with much more experience. Thanks for posting the fight!
On a side note, what does everyone think of the Griffin/Ortiz matchup? Conventional wisdom tells me Tito is going to kick his ass (or l & p him to death) but I just don't know, I think Forrest has a pretty good chance.