Step 7: Tillering
Here's where it really get's scary, we are gong to start bending the bow to get a smooth curve. We need a tillering stick, i just took a 3 foot piece of 2x4 and cut slots every inch, suboptimal, but workable.
So put the bow on the stick and start pulling it back, you want a smooth even curve, you can see my outer limbs are too stiff, so I'll scrape the belly (string) side to thin them. Keep working until you have a tiller you're happy with.
If at ANYTIME you hear cracking, STOP, get a new piece of wood and go back to step one.