I actually have a
thread in here somewhere about mixing. I acutally had a lot of fun making new ones.
You are correct, cutting 24mg with 0 should give you half.
For pure flavor though, you may want to mess with the ratios to best of your ability. Half and Half don't always produce the best results. I was always a large fan of RY4 and Caramel Apple....brought out the caramel in the RY4.