I'm about to launch an affiliate program for a physical item I sell. I think I can offer about 25% commission and still keep enough profit to stay in business. What do you think is more important to affiliates? Give them the entire 25% commission? or, Make it 2 tier with 20% commission and 5% overrides? I am also going to give monthly bonuses if an affiliate sells a certain amount. The item sells for about $20 and has a very wide appeal.