The 8:00 AM service is more traditional than the 10:15 AM service. Traditional hymns are sung, and all liturgy is spoken and read from booklets. The complete Eucharistic liturgy is recited in order to consecrate the elements for both services.
The 10:15 AM service is a mixture of traditional and contemporary praise combined with the same liturgy as the 8:00 AM service. Some parts of the liturgy at 10:15 AM are sung rather than spoken (all liturgy is also projected on the front walls), and reserve elements that are consecrated at 8:00 AM are used during Holy Communion (the consecrating portion of the liturgy is thus not necessary during the 10:15 AM service).