Almost three years I have been observing with my 12-inch Dobson from Orion Optics UK. I love to work with the Dobson. The setup goes very quickly (five minutes) and I'm ready to observe. I also like the fact that you can push the tube to any direction when starhopping, without having to use electronics. However, about one and a half year ago I took up sketching again, and very soon I noticed a big difference with my old telescope I used for sketching, an 8-inch Cassegrain mounted on an EQ-6. When using this set-up for sketching, the object stood perfectly still in the field of view, at any magnification.