you can add 1 teaspoon of baking soda mixed with 1 tablespoon of water to the mixture after it has been refrigerated and before rolling into balls.
Fluffing up the mixture with spoon before rolling into balls yields a lighter texture too.
I tried both the methods and did not find significant difference.
If the mixture doesn't hold shape, add more flour, a tablespoon at a time.
I used small cloves of garlic. Garlic can be overpowering so use accordingly. Once you are done mixing, fry a small rounded portion. Taste and adjust the flavor accordingly.
1 cup of dried chickpeas when soaked yields about 2 and 1/2 cups of soaked beans.
Canned chickpeas doesn't yield the same result as dried chickpeas.
I liked the variations of falafel and trouble shooting tips on toriavey.com.