I’m lucky to have a concert-chanter reed that can basically deal, like Silver Spear says, with a whole lot of change. Like SS, I drag my pipes through all kinds of weather all year 'round (they’re sitting on my cold office floor as we speak), and they get to fly to exciting faraway places sometimes, too. Generally they behave, and if I give them a day they settle even better. Most of this is credit to the reedmaker (not me), but I try to keep a good thing going!
(The one time they did misbehave was truly spectacular – we went to an unusually (and incredibly!) hot and humid session last summer right after 5 hours of plane and car travel. It was like stepping into a shower. On the plus side, my reed’s tantrums got me a chance to play a fantastic Benedict Kohler chanter for a glorious hour or so
)
Anyway .. My habit has been to get the pipes out and let them at least get within hailing distance of room temperature before playing (i.e., only cool to the touch instead of freezing in the winter). To move things along a little I’ll take the chanter off the bag, open the drone switch, and put some room air into the bag and drones.
With a new chanter I’m a little more cautious; I’d leave it sit at least a few hours. It’s hard, but you’ve waited a year
+, so what’s an extra couple of hours? Just go run an errand or something.
I’ve done that with my two chanters that came by international post … I also only played them for about 15 minutes a day for the first week or so. Knowing I have a big stout bag-arm, I didn’t want to exert too much enthusiasm on a reed that might still be settling. I also basically expected the reeds to have some adjustment tantrums, and I waited a week or two before making any changes.
So far, so good with all three of my chanters (the concert set was hand-carried over from Ireland and had several days before I got hold of it) and all are generally reasonably steady in different environments. The one chanter that stays home the most is the least adaptable, FWIW. This leads me to think you can “train” or “socialize” some reeds, at least to some degree …
Anyhoo, congratulations! Just use good sense and you should be fine.