Haven't been keeping up, but did read somewhere that it's somewhat fixed now. Anyway, here's a link Whitman provided not-too-long ago on the subject: http://www.eqoutrider.net/eqforums/viewtopic.php?f=25&t=5204
Personally, I don't even use a quiver any more, since I rarely bow only stuff, and if I do, it's for Headshotting, which the proc rate is modified for haste items. Thus, it's still the same amount of average procs per minute, with or without a quiver, and you get more real storage space with a non-quiver container.
Also from what I've heard, when it was really messed up, it depended alot on the bow delay and quiver combination. So, if you're really into using one, I'd recommend using a parsing program, and going to the Luclin Scion which are invulnerable to attacks, and don't attack, and you can arrow them a few 1000 shots, then divide the total fight time by the number of shots to figure up the average delay, for each quiver you want to know about, and no quiver also. It takes a little bit of time, but not too long. Last time I did it, with 2 quivers and none, all 3 with Haste, without, and with Haste + bard Overhaste, and it took about 2 hours, but a big part of that time is waiting on a free bard to group with me for 15 mins or so to do the parses. This was several years ago, and I think before the quiver debocle (sp?), and with a slower bow, which even after the screw up, most said quivers actually helped. Anyway, I got similar to traditional results. More wt reduction resulted in faster bow shots.
EDIT: BTW, the JQotH is a pretty easy quest, if they want alot of money for it. Need 4 lungs from Shissars in The Grey, then turn-in to a Katta Castellum NPC. Fleeting Quiver is pretty much worth 4K+ due to the rarity of the Lion Skin you need to make one. Took me about 80+ hrs to get one (actually two, as they dropped pretty close together).
Yther Ore. Edited, Feb 20th 2012 1:42pm by Yther