^^ Bingo. To play this (or any) sport at a world class level, which 1000 is, natural athletic ability is key. There are plenty of kids all across sports who practice hard, have all the right equipment, all the professional instruction, but no natural talent so they don't make it.
I practiced hard, worked out hard, and had decent natural athletic ability, but never had good speed. That is why I never made it past Division II College baseball. I had many teammates over the years who didn't work as hard but just had natural talent so they made it.
Disc golf is no different. There are some skills that need to be learned and honed, but those with natural athletic ability will learn them and perfect them much quicker. I read something back earlier in the thread as athletic people's ability to "repeat the correct motion over and over" or something to that effect. That is huge. Anyone can be taught proper technique, but people with natural ability will learn it quicker and more importantly, be able to repeat it.