Tony_S
commented about 1 hour ago

Why is it that you did the first layer 5/16" and then the next 2 at only 1/8"?I'm sure there's a good reason for it, but why not 3 layers equal thickness? 

Good question. 
The thicker first layer forms a fair curve with fewer frames.

The early bird gets the worm but its the second mouse that gets the cheese.