Bikepacking bike: carbon hardtail and racks?

{"document":[{"c":[{"e":"text","t":"Im looking at getting a santacruz highball (carbon hardtail) for bikepacking. Carbon frames seem polarising. I would look to fit a rear rack via thru-axel mount and seatpost clamp, and use soft bags for the frame. I could wrap/tape the frame for rub protection on the soft contact points. I would also have a handlebar rack. It would be on a mixture of road, gravel and singletrack. I like riding technical stuff on an inappropriate bike, but i have personally not done any bikepacking as yet, so am a bit naive."}],"e":"par"},{"c":[{"e":"text","t":"Id be wanting to carry a fair bit of stuff, as im keen to do remote routes involving camping, for weeks at a time but likely still being able to restock every few days."}],"e":"par"},{"c":[{"e":"text","t":"Most people doing these types of trips have steel frames, which significantly heavier (and dont repurpose well outside of bikpacking on MTB trails compared to the highball)."}],"e":"par"},{"c":[{"e":"text","t":"Is there anything im missing as to why this carbon hardtail setup wouldnt be practical for bikepacking?"}],"e":"par"},{"c":[{"e":"text","t":"Also wondering if i should go a medium frame instead of my usual small, for extra storage capacity. I ride a SC medium on MTBtrails just fine, but small has always been my preference/typical size. Would a medium(slightly too big) be more or less confortable for long days in the saddle on bikepacking trips?"}],"e":"par"}]}