The cherry I used for a pen darkened on it's own to more of a mellow brown character.
I don't know much about dyeing wood, but it sounds like an opportunity for an experiment. I know for my pens I have always bought extra tubes for the kits I've gotten. Seems like everynow and then I'd either mess up something, or the blank would blow apart. Just kind of cheap insurance. If you do have extra tubes, it might be interesting to turn a couple of blanks, and dye one and see how it turns out. The red might add some interesting character to it.
Just thinking out loud.
Programmer - An organism that turns coffee into software.
If all your friends are exactly like you, What an un-interesting life it must be.
"A door is what a dog is perpetually on the wrong side of" Ogden Nash