As you all know, these three processors are virtually identical. It appears Audioholics.com has managed to acquire a new sample with the hardware fixes from Sherbourn. I am looking forward to this review.
In the meantime, take a look at their FAQ on this product.
http://www.audioholics.com/FAQs/SherbournP7000.php I sure wish the damn thing would allow sub out in two channel with the mains set to large. Oh well.