I use spore launchers as garrisons in my interior cities. works pretty well. I also use them in teams with MW's on capture duty. The spore launchers sole purpose is to find MW's, which my MW attempts to capture. SL will almost never manage a capture, so just use them to hunt, use your MW to try the actual capture.
[This message has been edited by Black Sunrise (edited October 27, 2000).]