I've been trying to pin down if anything other than a 20% variance was used. The easiest way to do that in theory was look at three day spawns like Trakanon or Venril Sathir(post April 17 2001 patch ). If there was a lot of confusion about them being a 2-4 day spawn that would indicate to me that 20% was used. However there was little confusion most sources were in agreement that he was a three day spawn. Now 10% of three days is 7 hours roughly so a 14 hour window would explain that.
https://www.sok.org/showthread.php?3...ll=1#post35136
http://everquest.allakhazam.com/db/n...98763652995497
(Out of Era)
http://theconcerthall.yuku.com/topic/2399#.WO0mD9Lyu00
(Out of Era)
http://thegcp.yuku.com/topic/1016/Ve...s#.WO0qpNLyu00