Saito's have high compression
I couldn't believe it until I did it but you can start a Saito by flipping the prop backwards against compression. Not using a stick to push the prop into the compression, but just "throwing" one blade into compression. I don't dare flip my Saito .91 through compression, it kicks like a mule. It puts out great power though, and doesn't give me a headache like hovering with a 2-stroke does. The tone is much lower and the prop noise is far less than a 2-stroke.