Aion L5 - RX Resistors

[Bio77]

Normally, when I build an Aion board, RX resistors are assigned to mods or extras.  Wondering if the RX resistors in the L5 are the same?  Only X7-X9 are mentioned as extras in the build documents. 

[mauman]

I think the RX are add-ons to the original L5 preamp circuit.

RX3 and RX4 are optional for applying a load during testing, I took those two out after it was up and running.

RX7-8-9 are pop reduction for the LEDs and are optional as mentioned in the build doc.

The other RX should be installed.