I tested out my new AHE Potomac last night in the back yard. Temps dipped down to -3c or about 26f with very little wind. Used a warm down bag as a TQ, and my HH asym tarp as an undercover. Everything worked very well and I was toasty warm. There was a fair bit of moisture on the bottom of the Potomac that had condensed on the top of the undercover. It wasn't enough to wet the insulation, and dried quickly in the morning after removing the undercover. Given that the Potomac is synthetic insulation should I worry about a bit of condensation? If so what's the best way to deal with it? When the temps aren't going below freezing I won't use the undercover. A vapor barrier just under the hammock would likely solve the problem, but then I'm adding yet another layer to the system.