If you, like me, were getting brown flecks of scorched material in your ivory white PLA at the beginning of a print’s few layers - the culprit may be from the A1 startup routine
There’s a bit which, if you have an AMS connected, does some purging, and in it sets:
M104 S250
for a while as it does some stuff. Clearly as a catch-all temp for melting whatever might be in the line (PLA/PETG/etc, it doesnt know what last print was)
This was causing my Elegoo Standard White PLA+ to literally scorch, and left visible browned bits in the first few grams of extrusion, especially noticable in the purge but still present in the print!
I changed that to 230 (with a mental note that if i use some stubborn PETG in the future I may have startup problems) and so far my scorchmarks problem went away.