You can't have both a higher LL to standby ratio and less skips being used... the two are inherently linked. Lets go to the hour example. If under fastpass the old ratio was 4:1 and they got through 800 FP an hour... then upping the ratio to 5:1, but only giving out 600LL would cause the LL to empty out. With no one in the LL, the standby would have all of the access and the 5:1 wouldn't hold anymore for the whole hour. If you change the number of skip the line passes, you have to change the ratio accordingly.
It's possible the lowered the ratio to like 3:1 and are now only giving out 750LL instead of 800.
Very true, but the only way a line builds throughout the day is if more people enter the LL queue in a fixed amount of time than exit the queue and go on the attraction. You can't have that happen every hour throughout the day or the line would keep getting longer and longer and longer. For most of the day input and output has to remain the same or the line breaks. It doesn't matter if the line is 30 minutes or 2 minutes, so if the same ratio is used for LL as it did for FP, the passes given has to remain the same.
You are correct, somehow I was thinking there where 100 minutes in an hour not 60... whoops
TLDR: All I was trying to show is that the ratio of skip the line to standby is absolutely related to the number of LL/FP+ given out. The length of the skip the line queue is independent of those 2 factors as input(people getting in line)=output(people getting on the attraction no matter how long the line is. If input does not =output there will either be times where there is 0 line for LL (in which case the ratio is automatically changed) or the line will continue to grow and grow and grow throughout the day.