SCROG net bowing?

You must take a bigger trellis and let it lay on the side. Yours is a bit small and needs to the hooked on the sides.

If you get or make some support poles to go horizontal inbetween the vertical poles then you can attach the net to them, it also stops the sides of the tent from sucking in as much. I used conduit pipe and modified it to fit between the poles.

In my opinion, you're doing a great job with Scrog! For future reference, it's best to start training the plants early to grow with the Scrog method. Even though it might be a bit late to start now, you can still use it effectively to support those beautiful buds 😎. Your plants seem to be very dark green, so it might be beneficial to reduce nitrogen levels and shift your focus more towards PK

Give side more support points. Put stiff lines square around tent and create 2-3 support lines on each side. It will limit your access, but will provide your wish. Btw stop so much nitrogen, plants shows unhappiness symptoms. Too dark leaf is not photosynthesis effective.