there is a throwing knife forum here as well. This thread might get moved there.
I have used the Cold Steel True flight, bought one for my little brother a while back, and was not impressed. For matching throwers right now I am using SKS spike bayonets which are very durable and stick deep. have 15 I got for $3 apiece. can't remember the name of the store.
Of course, the Cold steel throwers are not "high end"