How do I choose plug vs. sawdust spawn for logs?

Plugs are very resilient but are slower to colonize. Plugs require only a drill and hammer for tools, and are economical for smaller projects. Sawdust colonizes drilled logs about 30% faster than plugs. They're good for larger projects, but an inoculation tool is required, along with other tools if you'd like to speed up the project. The stacking method, using sawdust, is good for urban settings or other locations without access to a forested or shady area. No special tools are needed.