Interesting on Mpcnc forum @vicious1 seems to be approving of PETG-CF.
I don’t want to be an idiot, if PLA is the go, I’ll buy some, and spend the time to get my printer great with it.
But I have a lot of high quality, expensive, Petg-cf, that I’d love to use, if the LR4 gurus say it’s all good.