Here is a biggie of the SLOstortion from Wampler. I had just finished the layout when I realized that the schematic missed the boost section...
...tracked down the boost schem and did a daughterboard that should be placed after the main circuit.
Schematic of main circuit
HEREAnd schematic of the boost section
HERENote that the C102 cap should be between 47pF and 100pF.
And the boost scetion