Nico is the grandmaster of the Slammer, but I'll try too :) LOL. I don't care too much about retrieve ratio. Faster the better in my opinion. I'll just reel slower when I want the bait to go slower. The dream combo for the 9" Slammer is a Rainshadow SW976 and a Calcutta 300TE. I don't have any 300TE's but I've fished them and they are darn nice. The 400TE is incredible too, but you don't really NEED the 400TE size wise on the 9" and under baits.

In the more reasonable zone, check out the Cardiff or Catala. 300 or 400 size. The 300 is good for the medium sized baits like 7 to 9 inches. The 400 size is better when you're using the big 10 to 12" baits.