Hi Melvin,
> But recently I couple my Aria with 85mm/1.4 and TLA 360, and it is out > of balance in hand.
I'm not sure how you're holding it, but I suggest you place the bottom of the camera in the palm of your left hand, pretty much underneath the area where the lense meets with the body, as this is the central point of the mass, and wrap your fingers around the lense focusing band so you can focus it It balances nicely there, especially with the 85/1.4 and the 35/1.4...except that TLA360 is large on ANY camera! It would probably unbalance a Hasselblad ;-)
Regards,
Austin