just tie an Aurora to the front of the POlaris and ram the bugger.It all depends on the hammerheads laser damage output compared to the Polaris's shield strength and regen rate. The polaris isn't as strong as you think based on it's current stats.
With current stats the hammerhead should be able to take on a polaris's shield as it only has 2 x large like the carrack. The 890jump has 2 x capital class shields I.e a big upgrade over the carrack polaris. So has a hammerhead taken out an 890jump easily? We should find out for science!!! How quickly does a fully manned hammerhead take out a carrack then how quickly can it take out a 890j?
Also, the shape of the Polaris and the design of the Hammerhead are such that if you hit it in the right place, the Polaris will bust through the Aegis like Homer Simpson through a Doughnut. Polaris = pointy wedge, Hammerhead = rectangle with a hole in it. Put the wedge through the hole and that thing is split somewhere.