my disorder is at 500+ polish, still gets through heads and has some teeth, no over under
pin is in middle finger, approx 5" pin-pap
GB2 is at OBB and it very arcing and predictable, same layout with pin in middle finger
needs head oil with it at OBB of 2000 dull
i like the lower grits and them polish, a little less maintenance than a dull surface and the over-under issues are far less noticeable with this surface
i would tweek the disorder surface 1st.
the Eruption Pro Hybrid would be a good choice, mine has a liitle stronger pin-pap at 4.25" pin down, love this ball