sometimes when reconstructing a dataset you get a lot of noisy points just floating in random locations, usually these points are pretty isolated to themselves, a neat feature would to be able to define a isolation kill radius (after allignment), changing this radius it would search from each point to the next nearest point, and if it doesn't have any points within that radius, or even a thrshold like if a point has less than X neighbor points it gets removed this should help create a cleaner geometry build..