I would cash out now! NO reason not too..
No matter when you cash out you will always recieve your payment around the 20th of the following month, therefor the best time to cashout is the very end of the month when you have made the most you can before switching to a new month, that way you only have to wait about 3 weeks (untill the 20th of the following month) to get your money, instead of cashout out a few weeks later and having to wait longer.
Also, you get a $1 bonus EVERY time you post a picture of your payment, so the more times you cash out the more $ you get! Why wait to have more money when you could cash out now, get your check around the 20th of march, post a pic of that payment for $1 bonus, and then be on your way to your next cashout already? Thats my opinion anyways.