Yeah, Sidewinder's right on.
Practice, practice, practice...
As for blowing the tinder bundle into flame, I've been practising with cigarette embers... for the smokers around here, it's a great way to get the good technique for that last (and very tricky) part. Also, keep in mind that the bigger the ember, the easier it is to make it a flame afterwards.
What will make that ember bigger?
Three things:
1) the size of the notch (the ember won't become much bigger than the total volume of the notch on the fireboard)
2) the number of effective "last effort" strokes you put in... they are the ones igniting the particles and turning them into an ember. The more you successfully put in, the bigger the ember.
3) patience... Once you've got your nice little pile of black dust smoking, don't rush it. Wait a little and let the ember grow on it's own and get more solid... 4-5 seconds maybe. Then, blow a little (slowly!)... that'll make it bigger and hotter. Then, and only then, put it in the tinder (gently!)... then wait a little again... Then cover it and blow.
Two important points: the tinder really has to be fluffy and thick. Pretty much the same aspect and mossy feeling as cotton balls. It can take quite a lot of work to make it that way. Usually I just grab a baseball sized tinder bundle (preferably dry grass, or some dry inner barks) and work it into a ball. Then, I compress the ball (hard) between my hands again and again from every angle until the inside is all mashed up. Finally I open it and make some sort of a cozy, fluffy bird's nest for the ember. That works well.
The important thing is that the ember must be in contact with a lot of fluffy material at the same time... that's why you don't want any harder/bigger bunch of tinder around it. They won't burn as fast and they'll keep the heat away from the rest of the tinder. Use a very fluffy bed for your precious ember.
Most people, too, are not blowing right on the tinder bundle. Don't underestimate it. You'll need a lot of wind to get that tinder to stay oxygenated enough.
Cheers,
David