Hobao H2 ball cup slop

[wookieewonder]

Hello. Picked up a second hand H2 a little wile ago. The ball cups all have a fair amount of play in them, causing a sloppy car! Anyone know if this is normal for Hobao ball cups, or are mine just worn out?

If it is normal are there any alternatives that will fit the 4.8xM3x7mm ball studs and the M3 turnbuckles?

Thanks!