As a general note of philosophy here - it may or may not be ringing a pertinent bell here - but it's a horrible idea to try to "fix" a dyed batch that you want diluted by adding more, and More, and MORE clear stuff to thin it. Dyes and tints can be remarkably pernicious when you least want it, and if you just keep pouring the diluting clear into something, you can end up with GALLONS of stuff that still ain't right! I got lucky and figured that principal out with (small, cheap) batches of fountain pen ink....
You always want to add the tint to the clear in small amounts, testing as you go, and as (I think?) was mentioned somewhere up above, you can control waste by mixing up tiny amounts in tiny jars. You can count out the parts by eyedropper-fulls and WRITE DOWN what ratios you're getting to, testing as you go. If your friendly neighborhood drug store doesn't think you're a junkie, you can probably get some gradation-marked syringes for measuring too - or get them online. You don't even want the needles, just the measuring syringe. Investing a couple of bucks here is FAR superior to making a barf guitar... Umm, like, that never happened to ME, but a friend of my cousin's girlfriend's old babysitter's neighbor read about it once? Don't throw anything out to begin with, because you may even find that a drastically-strong dyed mix in itself can serve as the, say, one-part-dyed to five-parts-clear medium.
But you are almost inevitably going to end up with at least one batch of disgusting grayish dirt color - it's just the way color-blending works, you can look up "color wheel" and see that there's more ways to make icky color blends than there are to make good color blends. Like, one little drop of red into a green batch = gross mud, and one little drop of green into red ALSO = gross mud! Red+blue = purple, and red+yellow = orange, and yellow+blue = green, but ANY combination of all three=barf guitar. It's SO much nicer to throw out 20cc's of that, than 200 or 300cc's! :toothy11:
Oh yes, add-on P.S. here: if you stick with water base dye, one drastic re-boot can be had with... bleach! It'll blast it back to virgin in no time, with the one caveat that you then have to make SURE you get all the bleach off. ALL of it... like, rinse it off right under the bathtub faucet! And dry it off with somebody else's bath towel, and still let it dry in the sun for a whole day too. And rinse it AGAIN... etc. There are similar Armageddon strategies for oil-base dyes too, but much, much stinkier.