several basic factors can be weighed, however, to determine what might be the appropriate timing in each case. a balance of color and bead size works perfectly. looking forward to the trilogy conclusion! it made me nervous, not knowing. it’s a lot like a car, even when you put the pedal to the metal, it takes time to reach top speed. seriously, there's so few of them you probably haven't noticed. they also do a great new customer offer which makes their bundles even better value for money! 