If it is on the very tip and does not cross the tip rail, it is not a big deal. It would squeak if it was a problem.
Buzzing could be from a soft reed, but going to a harder reed is not a good idea if it tires your chops after 30 minutes of playing.
Buzzing could be from a soft reed, but going to a harder reed is not a good idea if it tires your chops after 30 minutes of playing.