Honestly, Sheol A, B, C is not enough variation. Everyone does Sheol C for maximum segments....and some party members insist on doing a full clear.
Meanwhile, other folks in the party might not even have an enhancing-duration set or even have a Bard that can apply 4-songs. The disconnect in player desires/goals within the SAME event is extremely off-putting.
For a 30-minute event, it can take more than 30 minutes to find players who are just OK with getting 7,000-10,000 segments. (A full-clear is ~12-13,000 segments).
FFXI player cooperation seems to erode with each passing day. It's a very sad situation...