Adco Superthumb
https://adcosuperthumb.com/
At Midway USA $8.99
This is a cool magazine device that will do your single stacks with the same tool as a double stack.
Adco Superthumb
https://adcosuperthumb.com/
At Midway USA $8.99
This is a cool magazine device that will do your single stacks with the same tool as a double stack.