HEy I had this and have not loved it!
Had it sanded 1000 and concentric and it just was grabby.
Took it up to 1500 wet sand WITH the track and then repolished.
What a change.
This thing is strong seems to control a lot of the over/under in my synthetic house and has real good continuation thru the pin deck.
Now it looks like a keeper.
REgards,
LUckylefty