I have the HH with the #2 Zipper Mod, I'm glad I had it done and wouldn't like it any other way now. Having said that, I also have a 1.7/1.1 Custom BB and a Double Layer 1.1 BB that I've had for over a year now. Haven't slept in the HH since. Now, let me qualify that by saying that I haven't been able to get out a whole lot over the past year and I might try Doug the Elder's suggestion of using the modded HH during the summer. But then again...maybe not.