Yes, this year I have 9 x 60lb bags on the star and the star and frame probably weigh 60 lbs ... so around 600 lbs.
Since I know what my max wind is each year ... and its usualy 40mph or less ... and I've basically survived that a few times with zero movement ... I'm
not terribly worried.
If mother nature decides to bring a wind that 60-80mph, all bets are off.
I'm just not sure how much a hole in the middle would help in that worst case scenario.