I have a follow-up question to this. On the build document, D1 is listed as 1n34a. And for Q1-Q3 I’ve bought the three knob tone bender set from Small Bear. However, that set includes its own diode. A 1n270 specifically. My question is — do I just ignore that diode, or am I supposed to use it as “D1” instead of the 1n34a the build diagram lists?