I'd use what works, Glenn. When I first started the ultralight thing, I was rabid about cutting as much weight as possible, giving up some functionality along the way. Clearly some lightweight ideas don't hold up in all scenarios, for a variety of reasons, which you mention. I also came to the realization that there is no contest as far as 'the lightest pack' goes. It's more 'what I'm willing to carry'.
I always leave a couple pound "convenience factor" option in my pack weight.
With regard to pads, I don't use the inflatables anymore. A shortened Ridgerest or GG evasote does fine and I don't have to baby it.