Just curious; have you tried the Ghostly Bow of Bylze from the Claymore line ?
With its long delay, you can get a few CA's in nicely between the AA. It hits hard, and when it crits, it
really hits hard.
You will take a small stat hit if you use this bow, but for me the raw damage the bow can do outweighs the stat loss.
Also, I was initially concerned that the level on the bow might reduce the hit % against higher level mobs, but so far I've found it hits as consistently as any other bow I have.
(I also have the Torn Ligament, Wurm Destroyer, Grizzfazzle. Raincaller for solo/group content, and Searing Missles for long pulls.)
Only other advice, since it wasn't clear from your previous post ... try to maximize your ranged crit rate by any means possible.
Good luck on getting a better bow ... I'm in the same boat ATM ...
To answer your original question, I'm parsing about the same. Mostly mastered, and probably in better gear, but with less than ideal raiding AA choices. I suspect I could parse higher in raids, but it's hard to push that limit due to other factors.