Its not 10,000 hours to your maximum potential, its 10,000 hours to get great at something. Pretty sure you qualify for that label.
If think it was Gladwell that termed the 10,000 hours, Ericsson is not that specific. Or it could have been the other way around.
Gladwell took Ericssons ideas and pasted the 10k hour label on it. If you read Ericssons books he talks a bit about Gladwell and his 10k hour rule. The rule just makes for a good talking point. But the research Ericsson has done goes to show that natural talent is not a thing barring restrictions such as size, but excellence is achieved through thousands of hours of what he calls purposeful practice or deliberate practice. Quality practice, not just the going through the motion type practice most of us do.
Now, how to apply that to shooting is the million dollar question. Take someone like Ben. He obviously enjoys training, I think more than competing. Being able to enjoy the process is the key to being great at anything. All of the top shooters I have talked to have a similar mindset. They are able to self analyze their performance, enjoy the process of training, and have found the training methods that work for them. I think most of us are out there just swinging for the fences with no real direction...We hang out in the garage smoking draws and reloads but not really learning anything. We go to the range and roll the dice on a few drills and then go home, again not really learning anything.