It's just way too heavy for me. I guess I could play with it until I'm comfortable enough with the weight, but after using it for a few days I compared it to my Abyssus and the low weight of the Abyssus just felt sooo good in comparison.
The weight simply comes from the back of the mouse having an extremely thick shell. I had a plan to use the Dremel to drill a lot of dimples into the mouse shell from the inside. I guess that would also fix any imbalance. My laziness made me give up and I got rid of the mouse.