Got it and did the mod! Actually was kinda cool, way better than a normal metal zone. With the Diezel mod did anyone else notice when you get the distortion up to max you get an almost clipped compressor type sound?

Excuse my ignorance but in the Diezel mod above you list:

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C42 1uf
D3 DEL
D4 1n4001
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Is the D3 position a misprint and it's supposed to be LED? Or what exactly is a DEL?

Thanks! I did the first half of the mod and it's sounding better just form that!