yeah clones are tight, if you have a good mother plant you know that you will have a good clone and yield isn't changed much but if you have a clones you may yield more because they dont need the same amount of veg time
so i did some research, the only difference is you can flower a clone at around 5-6 inches, when you flower from seed at a safer height of 10-12 inches. other than that no difference, besides always getting females