Here is what i did to the code to make it a little more realistic (BSes on the lower end are a little harder but what i want is top end dammage.. here is the code in the source stock.
max_hit = (sint32)(((float)primaryweapon->common.damage * 2.0) + 1.0 + ((level - 25)/3.0) + ((GetSTR()+GetSkill(0x0

)/100));
I changed it to
max_hit = (sint32)(((float)primaryweapon->common.damage * 5.0) + 1.0 + ((level - 25)/3.0) + ((GetSTR()+GetSkill(0x0

)/100));
Chance was * 2.0 becomes * 5.0 seemed to beef up the backstabs enough loaded a 27 dammaged piercer and seemed to hit like it should, my 4 dammage piercer hit slightly more but not too much that i would say its over powerd.
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(Former)Senior EQEMu Developer
GuildWars Co-Founder / World Builder.
World Builder and Co-Founder Zek [PVP/Guild Wars/City Takeovers]
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EverQuest 2 Emulator. Zeklabs Server