I recently got three Scottish Blackface sheep (M/F and F lamb). The adults are in desperate need of a trim. A frined gave me some clippers he had. I know I need different blades; not sure what type. The clippers are the Sunbeam Stewart model 510 and it has 83AU top blade and 84AU bottom blade. Do I need to get just diferent blades or also the head? The sheep's wool is thick and they aren't very clean; which I hope is fairly normal. How often do you shear sheep? Is it too early to shear? Should I wait for the lamb to wean before doing the ewe? I've seen sheep sheared before and think once I have the clippers ready I am ready to give it a try. Any advice or suggestions on actual shearing is welcomed! Lastly, is the fun of deciding on what to do with the wool.