Hammerhead Tank? SMS? List musings.

I've been working with my list lately, and I've started to notice... my Hammerhead tank is not pulling its weight. With the points I throw into my Hammerhead, I can almost afford another two Broadsides without Shield Drones, or I can definitely afford a squad of Deathrains, fully equipped, both of which would add to my firepower immensely.
Furthermore, the SMS on my Pathfnder Devilfish hasn't really come into play... not that I expected it to, I only tossed it on because I didn't have anywhere real to put the points. If I drop those as well, the prospective Broadsides can grab some Shield Drones and other goodies. Alternatively, the prospective Deathrains can bloom into fully armed Fireknives, giving me a massive amount of anti-infantry weaponry.

What to do? I'm leaning towards the extra Railguns from the Broadsides right now, as 5 Railguns in addition to all my missiles will solve any tank problem I have. It could be argued that the Crisis Suits bring effective anti-tank as well, with more infantry killing power, but I'm not sure that I feel entirely safe with only one unit holding Railguns. Despite cover, Shield Drones, and leadership boosts, I am terrified of my Broadsides being singled out and me losing my best way to deal with heavy tanks. With two Broadside squads, I can finally play a dual firebase list effectively as well.
On the other hand, against all but high AV vehicles, the missiles are more effective overall. The plasma would be an excellent addition as well, as it would make my offensive force overwhelming powerful.

My feel now is that I should take the Broadsides for the extra AT, and the Deathrains or Fireknives at 2000. I could easily reduce a Kroot unit to find the points for firepower..
Thoughts? I'd love suggestions here, I feel I'm close to maxing out my firepower.

I'm torn right now.

Bringing in the Heavies

One of the constants in the Battleforce lists are their reliance on Crisis Suits for anti-tank. This can be the route you take, but the Tau are unique in that they carry the best long-ranged anti-tank weapon in the game; the Railgun.

Fortunately for everyone else, Railguns can't be crammed into every corner of our lists; only our heavy support. So here will be talking of our two Railgun toting Heavies.

The Hammerhead makes a very effective use of the Railgun if equipped (minimally) with a Disruption Pod and a Multitracker. This allows it durability at a range and the ability to move 12" before firing the Railgun, which is useful for side armor hunting. It can be used to tank shock objectives later in the game. It also can fire an anti-infantry round.

Broadsides are slower, but put out much more firepower. They are slightly more accurate then a Hammerhead, and with the use of Shield Drones and cover they become more durable to shooting (if easy to wipe in assault). You can get two Railguns for the price of one mounted one, and the SMS deal quite a bit of damage as well; I actually find myself firing said weapons far more often in the later phases of the game.

Which should you get first? Buying a Hammerhead model is cheaper than buying two Broadsides, and keeps mobility in your army. Broadsides, however, clearly put out more anti-tank firepower... but is the damage output worth the speed sacrifice and the additional chassis? Its your choice overall; I run both in high-points.