after not using the tool free lock, we use the hole on the other side of da casing to screw rite, means we just secure one side of the hdd, is this good for hdd>??? cause i take of my c5 tool less lock and noticed tht we couldnt screw both side since the tool free side dun have screw holes.... but this is a nice mod depends on wat the user decide la... more airflow or tool less-....