A plane set-up with 0 wing incidence, 0 stab incidence and zero engine offsets (down-up, right-left)....

A 0-0-0 airplane such as the one is question (fully symmetrical foils I think) can't be trimmed to fly all attitudes without mixing some electronic mixes.

A heavier wing loading does not improve any plane's (model and full scale) handling in wind or otherwise. A heavier plane simply flies... well, heavier, more sluggish to respond to commands. If you think you like flying a heavier plane, find a friend with the same plane that is 1 pound lighter and take a few flights in all conditions. You will change your opinion. I partially disagree with the guy who said it's only a 5% increase so you won't feel it. A noob probably will not. The focus of the noob is to keep the crate flying. A seasoned pilot will feel the difference

What Speedracer said holds. Try to move everything you can forward and add weight ONLY as last resort

Cheers and....