Alchemy ->crit

Hi, i bought nova 2handed it went +6 in 10 elexirs so i thought yey lucky me.
Now i try to fix the crit 7, but after 160 challenge tabs it's back on 2 never got it higher than 7, is this a bug ? is this bad luck ? should i continue trying ?
greetz

edit: tab nr 165 was the lucky one got crit 10
thread can be deleted

Before closing let me tell you 2 things:

You might have get highest crit value within 1 stone, or after 300 stones .. changing crit is always nasty, expensive and can be frustrating .. and it certainly depends on luck. If you feel like this is your day, go for it .. if you feel like not having much luck, then let it rest for this day and try another one.

Second thing is, you have now a Nova in your hand, which is compared to a non Sox Sword way better to pimp because you can get higher white values. If i would be you, i wouldnt be happy just with C10 .. i mean you got a Nova in your hand here .. and the higher your crit is .. the more chances to kill faster with a DD your enemy (think off a double Crit :) )

Nova 2H and normal 2H got same crit , which is 15 = 100% , though i agree with you that crit 10 on a nova 2 handed is actually bad ^^ , get it at least to 12