I wish research would look into high IQ procrastinators because they'd be an outlier to their data. Since the bad consequences tend to miss high IQ people. But according to the article, researchers wouldn't call that procrastination, since the consequences haven't been experienced. Many of the same stressors are experienced between people who complete tasks (I've been calling them high IQ but could be anyone), last minute, and those that miss their deadlines (proc).
I think your 'issue' is similar to mine. We find ourselves unchallenged. Therefore we wait, to increase the challenge. And when we win, the victory is oh so sweet.
I developed very bad habits as a child. I could screw off, read SF in class, barely study, and still be the best in science. But then I went to university with others like me, and it was a rude awakening ;)
Math and physics majors totally kicked my ass. But at least I was still near the top in chemistry :) And I discovered that engineering math and coding made a lot more sense than, for example, number theory.
I think your 'issue' is similar to mine. We find ourselves unchallenged. Therefore we wait, to increase the challenge. And when we win, the victory is oh so sweet.