I've done that technique on a juniper and tamarack. The tamarack has a bulbous healing quality to it that made shari be required. The juniper was cracked, rafiaed, wired and bent all in one session. It worked very well and gave me the chance to put some extra twist and bend. Too often people just try to bend something, but if you twist as you bend it, you get more movement. For inexperienced people trying it, best to raffia those sections. The tree will respond much better in the healing process.
Is that where the bird flies through!!