Kelp, if that bait is rolling and can't be tuned to run straight then something is way off. Line tie may be off center, lip is crooked, balast weight off center, but the tag ends going back into the bait should not be causing a problem. I drill a hole in the bait under the lip slot so the tag ends sit lower than the lip, that way the tag ends don't cause the lip to sit crooked. I use a piece of lip material in the lip slot to keep the hole flush to the lip slot.
The line ties on the Man. baits are molded into the lip. I don't know of any way for a hobby guy to do that.