Just chop and let dry. They should be pretty well dry by the time you get back then you can either let them dry further or you can go ahead and cure them IF THEY'RE READY. The potency will increase once they're chopped down because the cells metabolize the nutrients they have stored. If you're satisfied with the amount of cloudy and amber trichs then chop now but if you've still got a decent amount of clear then let it go while you're gone. I'm not gonna be one of the people who get on your ass about chopping too early because if you read anything on this forum you should know by now when to chop, but drying on the plant won't work as well as you might think because if it's still alive then it will still be respirating and releasing H20 vapor which is slightly counterproductive. Within 9 days you could also get bud rot starting so just make sure you're not leaving the plant(s) in too high of humidity. Pretty much just up to whatever you want to do and when you really want to harvest. Good luck with the grow though!