Interesting target, and there are similar NMLRA targets. Only problem I have is that when shooting in competition at paper targets typically you have a time limit and only the balls on the paper can be scored.
Only the upper 10 rings printed completely on my printer, the lower ones where the same width, but half as tall.
When I shoot at this target, I will be aiming at the quarter ten rings. So probably my misses are going to be outside the paper. So in theory I may shoot 20 balls and get 5 tens. You can't police how many shots are taken in a competition with range officers, and you certainly will not be able to do it here.
I like the idea and I like the target, but if I may make a suggestion, there is plenty of room to insert a complete bull in the center by omitting the 2 ring on the center bull. That gives five bulls to shoot at.
I will shoot at whatever you decide but we do need a distance, and position.