fish magnets is a bit strong
but they swim true, with little roll and stay consistant with use (don't take on water). that's all you can really ask of a danny (aside from being pretty)- the rest is up to the user.
danny's seam to be one of the toughest plugs to get right. Seams like all the better ones are really tough to come by - BM, RM Smith, Troublemaker