I had a new-ish car camping tent more-or-less fall into my lap, and it has fiberglass poles. I'd like to make some use of it, and save wear and tear on my backpacking tent, esp. when I'm at frontcountry sites with gravel pads, could use the extra space (it's a 2P basic X-frame design). However, I've heard that cold weather can increase the risk of splintering and snapping fiberglass poles. What's a good safe temperature range for using fiberglass tent poles? thanks -