If you already have a seater die, the best way to figure out if it is suitable for VLD's is to take it apart, get a hold of the part that internally touches the bullet and seat it on a sample bullet. It should touch only the ogive of the bullet. If it touches the tip of the bullet it is going to cause you fits.
Sometimes a die like that can be drilled out so that it clear the bullet tip, but ideally a good die will make contact as far down the ogive as feasible since this is close to the position where the bullet will contact the rifling. The more consistent the "jump" the better they will shoot. The bullet tips tend to not be consistent at all and you can damage them easily too.