Quick synthesis does not use 'basic synthesis X 4' because if it did, on things I can finish in one basic synthesis there would be 1 in 10000 chance to fail, yet I can easily get 2 fails in a 50 batch of quick synthesis stuff and the chance of that happening is less than 1 in 10000 (there are less than 10000 ways to order 2 fails in 50 attempts). It's not a big deal either way but I wish you wouldn't fail on things you can finish in a single basic synthesis.