Haha. That made me laugh. Anyway, I recently went camping and I bought 2 deck with me. Some bikes, and my week old sentinels. Now the bikes were newer so I decided to play with them. It was about 85 degrees f outside and after about 5 mins, the bikes warped and clumped and felt like crap. So I grabbed the sentinels. And although they had warped a little in the heat, I found that they were still spreading evenly, so I played with them, and they started feeling great. They are a little sticky because they are a week old and have grease on the edges, but they fanned decently for how hot it was outside. And I was still able to one hand top palm, convincing control, and flourish fine. I was so surprised. I used them all weekend in this weather and they are still going strong. In my 4 years of magic, I have never com across a deck of card that can handle this well in heat like that.
Like I said, they are a little sticky, but I am gonna keep using them until they stop spreading evenly. Week 2, here we come.