Re: Single foot guides
Some people like cutting their thread work in half - only one foot to wrap. Along with this some think it reduces the weight on the blank a meaningful amount, though that is tough for me to believe.
Personally I prefer snake aesthetically and practically. I find it easy to tape one foot securely and wrap the other rather than securing the top of the foot on the single foot guide till you get it wrapped enough to remove the tape/band and finish wrapping if that makes sense. Lots of people use them but I prefer snakes.