I think you can only send the limit for the day; aka 5 on day 1, 10 on day 2, 20 on day 3 (or w/e the numbers were). SO sending 75 scores all on day 1 wouldn't work
Gold mauket was good prize, it's just that Maukets were about 300k and now they're going to deflate
Actually, you can I finished all my achievements. Just started today.