First run with frozen black cherrys auto

You shouldn't top an auto if you don't have any experience with Topping in general. Try it on a photo first

I typically LST but I've accidentally topped an auto or two and no issues at all. I've never topped more than once though and wasn't my intention at all either. LST is the easiest on the plant so I would stick to that if possible.

Depends on genetics and the strain.