I think a 6x7 nitro load would be awesome, I think he loads the 4x5x7 to create the best pattern density somehow though. You would think a 6x7 load would pattern better but they always suggest the 4x5x7 and I have no reason to argue with the results. If he starts loading tss like they are advertising then that would be something to very strongly consider in as small of shot as they will load