Well, I think my stance regarding Chog is well known, no need to repeat it

But I really think that it would help to change the icon system somehow. The Chog biggest asset (somewhat unrealistic, IMO), is the very good ability to hit at very long ranges because the very accurate rangefinder in the icon.
Well, get rid of the range under 500 yards, and up to 1.5K show it in increments of 0.1K only. This will severely limit the ability to hit at very long ranges while keeping a decent measure of the relative speeds and E states.
Another nice adittion would be gun jams because abuse. If you are to start a 20 second spray at pray in a 6G turn, expect your cannons to jam a little

With that, and banning the Chog from the Fleets, I think that the Chog would be much less used and so it would let being unbalancing.