Here is one of my show fish, he's won Reserve best of show and class wins and some others. The remark i hear most from the people at the shows is "he's got great attitude" meaning his aggressiveness, and willingness to flare.
Mind you this video is from one day after his second show trip. Out of 4 weeks he was only fed 10 days in between the two shows and spent a grand total of 16 days in a box moving back and forth. And he's still this energetic!
And he zips around like that regardless of whether he can see his neighbor. All day, every day.