Growing these clones since August 3rd, I have them in a 2x4 tent and I am a first time grower. Plan to flip to flower Oct 3rd. Suggstions?

If the timer is amp rated to hold both then you can. I have dual and four outlet timers I bought when I was wondering the same as you.

would either of you @mwhite9829 @Mr. Grow It know if I can use one timer to control both lights since they’re daisy chained? Or do I need 2 timers per tent?

Looks like your doing awesome, all Id suggest at this point is enjoy it when it's done. Nice job 👍

Nice healthy plants you got there. Good plan to flip in 1.5 weeks from now; that should be enough time to continue to bend the plants down to fill up all the squares in the trellis net. If you need to top 1 more time then you have enough time - specifically that branch in the middle. What nutrients are you using?