yes you can adjust the number of hits in skill_db
from
490,9,8,1,-1,0x60,0,10,1:2:3:4:5:6:7:8:9:10,yes,0,0,0,misc,0,0x0, CR_ACIDDEMONSTRATION,Acid Demonstration
to
490,9,8,1,-1,0x60,0,10,1:2:3:4:5,yes,0,0,0,misc,0,0x0, CR_ACIDDEMONSTRATION,Acid Demonstration