With 66+5 Dexterity on Colibris, using this G.Axe (unlocked, of course), with full Critical hit merits, and a Critical hit+3% strap, (+13% critical hit rate), I parsed a 21.6% critical hit rate, and 2% total damage below my Byakko's/Berserkers Axe. I say Byakko's/Berserkers because there's no clear winner when parsing the two of those. Somedays one of them's one percent higher, the next day it's one percent lower.
Now, two percent isn't much. If the virtual wind was blowing east instead of west that day, I wouldn't be surprised if the Rampager came out on top. I'm not saying get this and omit getting a Byakko's Axe or Berserker's Axe, because this G.Axe (Rampager) wouldn't be too good against big things with lots of defense. However, against Hydra, it might be a neat thing to pull out.
Something else interesting to note; It's believed that one Dexterity equates to +.125% critical hit increase, and if you add up all my Dex, and my Critical Hit+, it should give me 21.875% critical hit rate, which is really really close to 21.6, and since the parser I use only gives the tenths of percentiles, it wouldn't be too farfetched that I ended up parsing something like 21.68, or .69. So, I would say it's a safe bet that: One Dexterity = +.125% critical hit increase.
Edited, Apr 1st 2008 9:51pm by CommodoreSixtyFour