>>, I feel like the bad girl answering.
Stat wise, if you're thinking of remaining as a katar sin, most of us tend to shoot for about 30-45 critical, according to your own tastes. Friends of mine use the 45 to get that perma flinch sensation, I always tended towards 40ish for more damage. Note that using a katar doubles the listed rate, so what you see is say 40 is in fact 80. This frees up stat points from dex, since criticals always land, and lets you get more strength in. But y'know cause you spend so much in luck, detracts from strength.
I also noticed your agility is at 99+19? There's actually a bonus at so called "break" points, where the added amount is equal to a multiple of ten. Since you have exactly 118 agility, perhaps change your stats so that its 91+19, taking advantage of that. This once again frees up a few status points.
Maybe flee gears, a nice additonal to most people's equipment. The cheapest of which would be your whisper carded garment at about 4-5 million for that lovely +20 flee.
Blarg, other than that, look forward to saving to getting stronger weapons. Plenty of those threads about so check em out ; D