On the CBM Website there are links to the original research papers for the AcrIIA4 protein. I think you should check those out. As far as which ones are important, you should use your own discretion after reading the papers and choose the ones you think are best.can anyone send me a picture of their pre-model, or recommend which add-ons to add. If not, can you at least direct me to a source or guide me to where I can learn more about which add-ons are important. I was put into this event just 4 days before my comp, so I really need help . Thanks!