Weeblanids - Stable Tyranid Troops That Don't Topple, or Is Your Genestealer Drunk?

Some models, especially the Genestealers, are horribly weighted towards the front and topple over with little provocation. I wanted something attractive to a magnet, heavy, and durable. I modified the base by affixing a zinc washer to it with putty. This approach is so effective at lowering and centering the center of mass of these models that I have dubbed them Weeblanids, because these 'nids wobble but they don't fall down. It's actually very difficult to tip them over after this treatment. For details on how to do it yourself, check out the method. As an example I tipped over a Genestealer as far forward as I could without tipping him all the way over and took a picture (bear in mind I was working a camera at the same time, so he could probably go farther...):

This is as low as you can go with the putty bases and still have the Genestealer bounce back up on its own.	This is as low as you can go with the shot bases and still have the Genestealer bounce back up on its own.

Conclusion - the methods are comparable in effect, but the shot method is a little more messy, awkward and time consuming unless you are making only a single base, but even then there is little to no time saved with the shot method.