5 days a good amount of time for Shiga Kogen?

Hi there



Question for all those who know Shiga Kogen well.

Is about 5 days there a good amount of time? Too short/long? We all ski and so can use all of the areas.

We're trying to balance out Shiga Kogen, Nozawa, Myoko and perhaps Hakuba.

Danke gozaimasu!