Reverse kernel models outperform independent models and approach unrestricted models for predicting antibody enrichment. We compare the performance of our reverse kernel models with that of our unrestricted models and independent models on validation antibody enrichment data. The Pearson's r values on the validation set are indicated with a white bar in the above plots, and we use a box plot in conjunction with a violin plot to show the uncertainty as measured using 250 bootstrap samples of the validation data set.