the weight comes from adjusting the attributes of the Follical shape node (select the dynamic curve in the outliner and then the Follical shape tab ) and adjust the stiffness and maybe the attraction, then under the hair system shape tab adjust the dampening too until you get the result you are looking for.
Be careful how much you adjust because a small amount can go a long way, also ONLY adjust one attribte at a time so you can see what it is actually effecting so as not to adjust anthing more than you need to .
Its really a matter of tweaking settings until you find what you like ...goodluck and i hope this helps .
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