How do they look? Are they ready to resist outside?

They bend, because your sub is packed to lose bud. As the roots grow, if they pass through a weak spot and say there's substrate movement, them roots are pushed pull a part of your stem, and hence they fall over. They having difficulty rooting to the sub. This will subside after a while Your splints are working grand. They look in good shape. What they're about 12-15 days old. So, look nice and light not too much N which you'd be surprised how much we see that here. Good Growing

She is ready to go outside, but with a little hardening before planting. Any night that maybe to cold, you can cover them with a planter or bucket. Cheers