I dont know about stars, but .25/.5 is quite beatable on party. It might be because they only offer it for beginners.
You can play within 45 days of the first deposit. I played 3k hands there and the overall SF% is more than 40%. If it's the same on stars, I think you VP$IP is a bit low. You might try to play more hands. Just my 2 cents [img]/images/graemlins/smile.gif[/img]