Sounds like you use the same as me, JK. I believe it's called a snell knot, and you need two ends of the line to tie it. There are some video clips on the WWW showing Roy Marlow tying this knot; may be worth a google which may help to demonstrate rather than explain it with words.
I read somewhere that Ivan Marks put very few turns on his spade end knots - perhaps as well if he said that tying up could be done with 1.5 inches! Can't imagine it would be possible without using the snell.
I only learned how to tie spades 'properly' relatively recently, and stumbled on it by happy accident. My mate used to get a bloke from Nottingham to tie the 'fiddly' ones - 24s and 26s to .06 and .08, and he gave me some. I 'tested' some of them, and found that they never broke at the knot. The bloke was called Pete Newbold, and I got him to show how he tied them up. After many years of using the Matchman hooktyer, I am now a convert. It is much easier than the Domhof, as you do not need to tension the line, or thread anything through any loops. Another 'plus' is that you don't risk having a curly section of line near thge hook (like you can get when using a hooktyer) because you draw the whole hooklength through the knot as you tighten up. Another trick to make starting off easier is to double the end of the line over and twizzle it between finger and thumb (the end that is held against the hook before the whipping takes place). This creates a stiffer end (ooer!) which makes putting on the first couple of turns much easier. I remember watching Pete tie on a hook in less than 10 seconds.
Sorry if I've just confused everyone, but it is something that really needs to be seen rather than read.