One of the easiest to make is working on the wrong limb
These days I always tiller with top limb to the right and the toggle on my tillering string (which I use to adjust it's length) also to the right.
One of the hardest lessons I learned was how to saw the right side of the line.
I was just a school kid and was making a crossbow with the prod made from a leafsping from a car. The taper was marked out as basically 3 straight line cuts.
So cut line one, saw off the scrap, cut line two saw off the scrap, cut line three. One side finished
That looks good.
Now bear in mind this is pretty hard steel and a pretty long spring.
Turn it over, start again...
Cut line one, saw off the tip
bwahhhhhhhh!
My brother helped me out, we got another spring and took it in turns 5minute shifts and we got another one cut, still took us 20 mins to saw that bad boy.
Del