Great job on the pen Hans!! Good choice on the Kit too, this wood needs something fancy to go along with it's natural beauty.
No need to get nervous, that Cocobolo Burl is very stable. I have only seen some slight movement in the blanks and no cracking whatever.
Hans , I'll have to agree with all the others . That Coco Burl is a beauty . I really like the Emperor . So , put them together and there you are . Fantastic pen !