Plot of the proper orbital elements distribution of the synthetic KBO population for all bodies with no magnitude cutoff. The orbital elements were divided into 1000 bins in a, 300 bins in e _proper, and 400 bins in i _proper. The region near 39 AU is empty because our model contains no Plutinos (or other resonant KBOs). Vertical stripes and the upturn in eccentricities near 41 AU are due to secular resonances, which are poorly handled in our low-order secular calculation of proper elements. These minor shortcomings to the background proper element distribution do not affect our results.