3320 w/ H165 Lowers When Curling

Hi all, I recently took delivery of a new 3320 with the H165 loader, with a set of Artillian forks. When I go to curl back, feathering the control valve, the load drops. If I shift the valve further, the load will then start to lift. Weight on the pallet was approx 600 lbs, Engine rpm was 1900.

I've been reading a lot on the 1 series with this exact problem but didn't see anything with the 3 series. The fix for the 1 series was a redesigned valve.

Has anyone with a 3 series seen this issue?

Thanks!