Setting the dye and pigmented colorants straight...
Robin,
There is no "wood in this world" that should take that many days to color Dark Red Mahogany.
If someone has to take that long, there is something wrong, do you think that manufacturers or refinishers can spend 5 days just coloring their wood.
This might be OK for a private woodworker or hobbyist with time on their hands, or those conservators who work on priceless antiques, or if you worked for people where money was not important.
If your woods was stripped "clean" and there was absolutey no residue on the woods, and you did not sand the woods too smooth so it would not accept the stain, there is no reason that you could not color it a "dark mahogany" color in either mixing the dyes, or using "pigmented stains, toners, glazes, or shading stains."
You probably have heard that you should not use pigments, because they "paint the wood" ? That is just not true, pigments do not paint the woods, its the "finishers who paint the woods." Pigments are just as valuable as dyes in finishing, in fact in my personal opinion, they are more valuable, because you can do more finishing techniques with pigments then you can with dyes.
Robin, you need to rethink your finishing plans, I would reccomend that you consider using the pigmented coloring mediums listed above, and make up some samples.
Think twice, and finish once.
Good Luck
denegating anothers proffession
Macs
denegrating another profession is not accepable on this forum.
if you wont understand that there is a place for traditional and modern work
and both have there uses and merits and appropriate applications then i think you should not be posting here
astrid