Faster feedback is jet fuel for answering the call of God. When Jesus sent the 72 they came and fed back the results. When he asked the disciples to feed the five thousand, they fed back their search results had come up with loaves and fishes. When feed back is immediate we focus attention on what is coming around the corner and consequently put more energy into the activity. In creating a invitational church, make sure there is a feedback loop in place. It will help with both formation and evangelism. Invite someone to take a closer look at Christ and his church.