Its and auto so I wouldn't top now, as you wont give her enough time to recover before going into flower and they need at least a week after topping. You want her to go into flower strong and stable to set her up for a good yield and harvest, you can still get some big autos and yields without topping (Check my stardawg & girlscoutcookies diary) that will show you theres no need to top, not worth the risk. Any advice just ask, happy to help. Hope this helps