oh sorry didnt see this... next time maybe u should pm me...
this is the best method. as for posting a vid on youtube... i cant do tht... sorry... dont have anything to take a video with. i can try to explain it very nicely though...
all ur doing is turning all the main features into lines, so that you can magnify by exactly 2. then, after they're lines, you add on the extra details (eg legs on top of lines). the lines should be real thin, ie, should be erasable very easily, light lines. the drawing on top of this should be much thicker. also, having lines helps you measure angles between structures and so make better drawings..