Hi J: Your right about the twins not really needing counter rotation I'm sure. I have 4 twins now including the Mossy. I have not used CR before but thought it might be useful with these bigger 16" props.
Part of the problem is my location, it has been really hard to get anything here for RC. Just recently we have a new RC shop, they aim to please alright, but their CDN prices are plain scarry sometimes. We are quite often paying double your costs thru local suppliers.
As for the lathe, I purchased the one I have now, a 12 x 36 thru Busy Bee Tools. They have many sizes, from 4 x 9 on up. As for learning to run one, grab a pc of metal and start chewing it up -hehe.
Thanks for the nice comments on the guns. Doug B