I tried unsuccessfully to print PAHT-CF on my X1C using the Textured PEI plate and it would not stick. I switched to the smooth plate and used the Bambu liquid glue and it stuck the first time. It was about 150mm x 150mm flat model and peeled after the first layer. I had read that others printed this filament with the Textured PEI plate but maybe the size of the model plays a bigger factor.