I bring horrible news to the heRO pvp community that hates assassins, but researches seem to indicate...
1) Sonic Blow with ice pick is not a bug, but just the supreme pinnacle of the "doomslayer spiral pierce" trick, only that you do it with ice pick and sonic blow instead.
2) Sonic Blow without stop or any animation delay *can* be achieved, but I'll keep this secret to the assassin players who got mistaken for svn bug abuse in GM reports.
Rather this is fair, or balance, or worth changing, is for another topic and I'll stay out of that one... but they are not a result of svn change.