Yngen mate, having a closer look at your table.... I'm afraid I've spotted a few errors. The Kraken 2 for example, does 572 hull dam per shot, multiplied 4 == 2288 /sec. Power usage is 126 * 4 == 504 /sec
Meanwhile our old friend Samael does 210 * 8.33 == 1748 /sec, power usage is 82 * 8.33 == 683 /sec.
You can Kraken is easily far better than Samael, in terms of both damage and power (although not fire rate.) Kraken also has a longer range but slower speed.
If you like I'll have a good proofread of your table tonight and correct errors (hey I do it for a living:D)