How in the world did you get that 10 point increment. All usage nights are some increment of 25 points. even when they have sales they round to the nearest 25.
I think they gave me some percentage point discount for being a premier plus member and making a last minute reservation. I live on Oahu and if I remember correctly I made a last minute reservation at MOC to just go there with the family one weekend 4-5 months ago and they just gave me I think a 15% point discount.