Academy 1/72 A-10A Thunderbolt: Balancing Issue

As expected, this guy was tail-heavy! I have to put so much metal stuffs I found that I cant fit it inside the cockpit and nose area of the kit anymore. Im thinking of using the Tamiya Multi Chasis Balance Weight as an alternative coz its smaller and easier to hide. But Im still asking the pros at Plamo and Mechapinoy, maybe they have a better suggestion.