I usually 'stack' 3 pcs. of 1/8" BB. That way the middle one SHOULD turn out the very best , the top one usually turns out OK and if you get lucky you can also use the bottom one.
Also I use FD New Spiral, 2/0 for my blades. If it is going to be an 'overlay' I will cut around the outer edge using a FD Polar, #3.
My Thoughts, my ideas, my opinions....
~~~GB~~~