RLee, On the Stewmac dye - If SM recommends 1 oz. dye to 32 oz. of diluent, I'm pretty sure it's the same ratio that Jeff Jewitt recommends for his Transtint dyes. You can adapt that same ratio to employ other units of measurement like milliliters or even drops. For small batches of tint mixtures, I like measuring in milliliters. There are approximately 30 milliliters in one ounce, so you can accurately measure out a small batch when working in milliliters. By measuring accurately, you can come up with a formula that you can accurately repeat no matter how large or how small the batch is. Whatever unit of measurement you choose to use, you still use the 1 to 32 ratio. 1 ounce to 32 ounces 1 milliliter to 32 milliliters 1 gallon to 32 gallons 1 drop to 32 drops For testing out tints and zeroing in on a shade that I'm looking to achieve, I'll usually mix up a batch at the recommended ratio, like in this case 1 to 32. Then I'll draw off a portion of that mix and blend it with an equal amount of diluent, so then I also have batch of half-strength (1 to 64) dye mixture. That weaker mixture gives me the ability to experiment a little bit more and creep up on the shade I'm after . Oftentimes, I'll prefer the look of 2 or 3 coats of the half-strength mixture (1 to 64) over 1 coat of the full strength (1 to 32). Have fun with experimenting and finding the shade that you want . Best Regards, Geo.