Sorry deleted original trying to edit. What is your personal definition of "trapshooter". Sometimes I feel like an outsider on this forum because I rarely shoot ata [and my posts probably show it].
Big M...500 birds to qualify, isn't it?
A person does not have to register targets in order to have fun shooting trap. The question is do you want to be a recreational shooter or would you like to bring an element of competion into the activity? The thing about competive shooting is that it pushes the shooter to continually improve and set goals. The interactions with other competitive shooters adds alot to the experience and is something you really miss out on if you just shoot recreationally.
As to the question of target requirements, that has to do with how you would be classified if you were to start shooting registered trap and what the penalty classification and yardage would be if you were to attend a large shoot with out enough registered targets to satify their criteria. This does not mean that you cannot shoot or participate. Remember, everyone has to start out this way and after the first season or so you will have established averages and target totals that will be used to correctly classify you in future shoots.
A Trapshooter is someone who enjoys the game of trap, it has nothing to do with membership in any organization or club, nore the number of targets shot in any given amount of time; its about the love of the game of trap.
I don't know what the requirements are for the state organization you might be participating in but in my neck of the woods, you would shoot B class singles, B class doubles and be on the 20 yard line for HC and that is just for the typical club level matches. If you showed up at the state shoot with those target numbers, they would probably put you in A class singles, A class doubles and 25 yard handicap. You could still shoot though but you would be in with some pretty tough competition. As it usually turns out at the bigger state shoots, a person needs to post near perfect scores to win in any class so taking a penalty classification really isn't a game buster.
Now when you do get enough targets to be classified, your class for singles and doubles will be based on your average - normally of the last 1,000 targets. From the numbers you threw out, I would guess you would probably manage to get into A class singles. Your HC yardage will stay at 20 yards until you win a HC event with the top score for a punch or shoot a punch score (96 or 97 depending on organization).