As I posted in another thread, I'm always on the lookout for the perfect pad...I'm still a heathen that hasn't been converted to underquilts.
But I'm always willing to discuss religion so, for your cool and 'nippy' weather experiences, what temps are we talking about? And how much insulation weight does it cost to buy those low-temp capabilities?
The Oware pad I use (40 X 60") slips very little if any in my Hennessy. While the foam material itself is not as slippery as ground pads I've used I think the main reason I don't experience much slippage is its size...there's no place for it to go. Its size also allows it to cup around my shoulders providing some extra insulation and some wind block.
While it's not perfect (e.g., it's bulky to pack, its cold limit is in the mid-20s, etc.) it only weighs 7oz. But to mitigate condensation I clip a light fleece throw to the pad. While that appears to work, it also adds another 15oz to the system and I think that's a pretty big weight penalty (total is 22oz). I've been dwelling on the idea of cutting the throw in half (an idea from the Pads forum) and using it just under my torso thereby dropping 7oz. All the parts of this system cost less than $40.
For all you underquilt fans, how do your systems compare? The factors I'm interested in the most are total weight, low-temp capability, time/convenience of setup, and cost. I know I'm a sinner but the sin feels sooo good.
Stll, I could be saved...