Kato Unitrack Double 20-003, 20-001, 23-046

  1. If I am going to be using the 23-046 double track viaduct incline pier set, do I have also use the 20-003 double incline track plate
    between the double viaduct track and the 20-001 double track straight plate?

If this is true, then I would need to buy two of the 20-003 incline track plates because my train will be descending as well as descending right?

Why can’ I just go from viaduct track to 20-001 straight plate track?

  1. Does 23-046 double incline pier set include a set of piers for descending as well as ascending or do I have to buy 2 sets?

  2. Does this pier set also include the S-Joiners?