The main difference between XT-CF20 and nGen-CF10 is the base polymer XT and nGen. This gives a slight advantage to nGen-CF10 in terms of temperature resistance. Which is about 5-10C. The lower carbon fiber content also makes nGen-CF10 easier to work with a less susceptible to material accumulating around the nozzle during printing.
Drying of nGen-CF10 is recommended when users observe excessive stringing / oozing on travel moves. The melt of the material will become easier to control when dried properly at 70C for 4-9 hours depending on the time it has spend exposed to the environment.