Thanks for the link Doug, wow, that is a pretty complex finishing method but I guess it must work.
- I have stopped using stain for most of my finishing and now use water based dyes instead. To be honest, I have not tried to dye wood after it has been stained. I am not hopeful it would work well because of how stain is made (ground up earth) but you could try it on a test piece, then you would know for sure. Here's a quick link to my Dye Versus Stain video -
I don't know why it is, but maple sands really nicely with 80 grit. I think I would use that, then work down to 120 and maybe finish off at 150 or so.
I would use a random orbital. Belt sanders for this kind of work are risky, you may gouge the wood or make it uneven, random orbital should be fine, in fact, if you have a wood scraper, I think I would scrape all first. That might take off a lot of the top layer of stain ... make it a bit easier for sanding.
I use the Lee Valley dyes that come in packages and mix with water. I have had excellent results with them though a bit hard to pick exact colors over the internet, so I often get a couple of different ones so that I can mix a couple together for a custom color.
I personally have not encountered blotchy finish when using a dye, but again if you go this route, best to test to make sure.
Not sure what you are using for top coats, but my entire finishing regime has now changed and getting the best results using one of the German hard-oils like Saicos, Osmo or Oli Natural. They are all used for flooring so are very tough, are food safe and eco-friendly and won't blast you out of the workshop with their fumes, they are mild and actually smell nice. They DO take MORE WORK to put on, and require 3 coats because they MUST be applied in a very thin coat. What I like about them if you get a wear spot in a few years, you can simply re-coat it and it blends in, without having to re-finish the whole top again ... but now I am diverging ... sorry.
Anyway ... there you have it Doug