A long while ago I saw a post on the Baren Forum blog about a moku hanga workshop that Mike Lyon had taught in Connecticut. In an accompanying photograph, I saw that Mike had his students paste their scanned and inverted sketches face up on the block and simply cut through the paper. This is in contrast to the rather tedious method I was taught, where the sketch is pasted face down and then the back of the paper is carefully rubbed off until the remaining paper is nearly transparent. I've actually gotten blisters on my fingers from rubbing away the paper on many blocks in one sitting!
Anyway, I always meant to try Mike's method and today I finally did. These three blocks are tracings from three different satellite views of a glacier in Greenland that's breaking up. I traced them, scanned my tracings, blew them up to size and flopped them for output. Then I pasted the computer printouts onto the blocks face up. Ready to cut!