Should I send both my SAT scores or just my better one?

In February 2015 I got 530-reading, 570-math, and 590-writing for a total 1690. In October 2015 I got 560-reading, 630-math, and 650-writing for a total of 1840. What do you think? Should I send both of them or only the October score? Some people tell me that I should send both to show that I improved but some say to only send the better one… I can’t decide what to do and deadlines are coming up very soon. Please help! Thanks.

Many schools have requirements about this. I believe most schools require you to send both, and they will either superscore or see both. Some schools will allow you to choose. You can check on their website, or you can just send both to all the schools. I see very little disadvantage to sending both, since most people take at least two tests, and you show significant improvement.