Talk:List of submarines by upgraded maximum stats/@comment-24254791-20131219032952/@comment-24087117-20131220021222

I feel it's worth it more when you have all four of them. When maxed out and fully equiped with torpedos they can clear most maps pretty easily as long as you don't run into a Line Abreast node. The second slot, ability to cut-in, increased hp, base damage and evasion more than make up for the doubled repair time on 8, 19 and 58. I just wish Imuya would get a bit of a buff to her torpedos to match that of the others and that torpedos were more easily crafted.