I am in a very similar boat as you. I have both jallys set to 9. One Jally has normal hw errors while the other is through the roof. Plus my average speeds are all over the place.
Define through the roof? I don't think error work is sent back; I think it's just dropped. Mine now is 2.5% overall, 0% on one chip, 5% on the other. But in a technical sense, a chip core that is 25% bad is still doing 75% of the work and contributing to my overall dollars.
Perhaps.
C
75% of 9 = ... 6.75