hey mate. The program I use to delegate is called vessel. Here is a good article on it. with 310SP don't feel your obliged to. Wait until you get your slider and keep your SP over 500. But its completely your choice.
https://steemit.com/minnowsupportproject/@danielsaori/sp-delegation-the-easy-way-user-guide-using-vessel-created-for-minnow-support-project