Materials for 1 Month vs 2 Month Study guides

I see that the 1 month Plan requires the GRE Super Power Pack and that is not listed on the 2 month (which instead lists the 5 lb Manhattan).

Does the 2 month plan just cover the material through videos and other resources rather than utilizing the GRE Super Power Pack? Or is it recommended to still pick that up to supplement the material in the 2 month plan?