Bit late if it's not 😄
RQS
"
However, it's important to remember that topping is a high-stress technique. If you're going to use it on an autoflowering strain, you'll want to do so very early, and only if you're positive your plant is super healthy. In general, we recommend staying away from topping when growing autoflowering plants"
From what little I know of autoflower is some are early flower type that just don't have the time built in for high stress recovery,some strains love it.
Not a subject I'm that good on,you may have a fantastic time with it!
Enjoy your grow