This is the first time that I have used a Honduran Rosewood Burl blank. I put it on a Majestic JR fountain pen and it turned out really well. This was a single blank and the color variation is just the way that it worked out.
Where did you get your blank from? I bought four blanks off ebay and paid like $15 or $16 ea.
While I like the look of the HRB wood. I will save the other 3 blanks I have left for very special occasions. Amboyna is my wood of choice when I want really figured blanks although Maple burl is nice too.