Rain delay modeling - Primavera Risk Analysis

 I am trying to get a P80 date for 600 activity 4 year construction project using the Weather Event (Drilling Days Lost....) setup and Risk Factors together with Quick Risk Template.  This is a two-staged process since the project schedule is resource loaded.  The first step involved stripping all resources from the schedule and then applying the calendar (which will be attached).  The problem is that I am not getting the results for this stage that I expected.  If I sum the min (119 days), or the likely (225 days) for the period 01Jul13 to 25Aug17, they are greater than