Hi,
My EQ5 is about 7 degrees out in Sydney, and I heard of one that was 9 degrees out (but hearsay). Don't know why they can't get it right.
I use a bubble level with a thick plywood triangle carefully cut to the latitude of the location (I'm cheap
).
I think this was one reason I had immense trouble with alignment when I started using this mount with a Syscan go-to.
Cheers