I call bs on that one. 1st you only needed to chalk up if your working something hard. 2nd I find its more of a probelm that i just can't grip the hold in the first place if my hands are sweaty, if you can grip it once your hand is on there its not a probelm
Try Squids idea, or just deal with it till your hands get used to it.
It was the best I could come up with, since I'm at a loss as to how you get blisters climbing. I was a gymnast for several years, and I learned quickly how blisters form. Rips are easy when you're pulling hard, because it requires only a single lateral motion to simply rip the skin off, but blisters require repetitive motion in multiple directions, working the skin loose. If you're working your hands on a single spot that much in that many directions, it seems like you're not keeping your movements smooth, which is critical when you're holding on by just the friction of your skin.
As for rips, ya, second to just taking some time away, Squid's superglue option seems like the best bet for fingertips.