In reply to tmawer:
Hi Tony, I think skin varies massively between individuals but you're basically after the holy grail of thick soft skin.
Thin skin obviously punctures and weeps/wets out with sweat quickly, thick hard skin tears in flaps and detaches from the softer layer underneath, as is is often poorly bonded to it. Hard skin also doesn't mold to the rock or bite into edges as well and can dry fire more often.
Regular sanding (I use emery paper wrapped round a marker pen) stimulates growth and keeps a glassy shell from building, and regular pre-bed moisturising speeds this up in my experience. I use Norweigan formula by Neutrogena, other brands are available :-D
Other products such as Climb On do a better job of healing holes, cracks and flappers.
Sweaty hands is a separate issue, which antihydral and other products can address.
Orange juice strips the oil out the skin (stab an orange with your fingers!) and makes for briefly grippier hands, alcohol based liquid chalks do it too.
I also find being really well hydrated makes my skin last much longer, worth experimenting with. There has been some long and detailed threads about it on ukb in the past, anyone who boulders on abrasive rock gets pretty obsessed with skin!