The Tripper gets off to a good start with a gory kill scene but after that it becomes a bumpy ride, suffering from some pacing issues and annoying characters until it picks up again toward the end.
What did you think of this hippie-killing slasher flick?
(http://fight-evil.com/movies/t/tripper-2006/2.jpg)
I feel that even though our ratings aren't really equivalent (your 6/10 is higher than my 6/10, I believe), we both basically got the same reaction from this film.
Not a terrible flick, but more or less meh across the board.
Very solid kills, overall, though.