You certainly don't have a choice! I don't see you you have them in there now. My 10 one week old plants take up that much space in 1 qt pots. It looks like we are in a similar position. I will have to put mine outside at the same age, but about May 3, which will be a little longer days for me, but not enough to continue vegging. They probably won't get to be monsters, but I have had fairly good luck doing this in previous years. I only yielded about 2 oz per plant, but sun was limited and I was out of town a lot so I didn't get to give them a lot of attention once they were outside. Hope to do better this year with a little more experience. Make sure to keep yourself a written journal on the grow, even if it is a completely private one. It will keep you from making the same mistakes over and over, and you will be able to remember the things you did right, and exactly when you did them. That has been a hard lesson for me, but it is so worth it!