I have uploaded the latest version of my variation on Ian's software with a default of "stock standard" which means it should run on units "factory" wired.
It includes the "OPTION_ALC" where I use a table and interpolation to set the attenuation for 3 levels (Low, High, Max) for SSB power output.
Not a complex code at all (just search for the "option_alc" keywork). Will give up to around 50dB of attenuation. So should be plenty to control the power even for WSPR low power fans.
I even had to attenuate the signal for "Max" power on 40 and 80m otherwise I would get well passed the targeted 16-17W on the lower frequencies.
But still well short on 10m, so I am following Allison's work on the power chain with great interest.
73, John (VK2ETA)
Software at: https://groups.io/g/BITX20/files/Variations%20on%20KD8CEC%20Software%20%28by%20VK2ETA%29%20+%20ATU%20sketch/uBitx-Raduino-KD8CEC%20based-VK2ETA-Variation%20-%20V20180524.zip