Yes, at this point is difficult to make it (see my example blood_vessels_2.max). There you need to create an independent splines, and for each spline copy and configure a specific path. To start the path correctly, for each spline need to reorient pivot.
But we have plans to develop a Spline distributor, which would allow to start the path directly from the starting point of the splines. This will allow to solve your task much easier.
do you still have plans to develop a Spline Distributor?