I hate to have to say this, but the plugs need to go in angled at about 30 degrees left, then 30 degrees right, repeated this way through the entire length of the crack. Starting with the second plug, it needs to intersect about 30 percent of the diameter of the previous plug. Like interlocking your fingers, this "cross-stitching" of the plugs in left-right angles, while each plug overlaps into the previous plug, is what ties the deck to the side of the block casting. If not done in this way, the taper of the plugs is only trying to force each side of the crack further apart. I hate to be the bearer of bad news, maybe I should have explained all this in the previous post.