Left-Fined or Right-Fined?

I found one thing strange while fishing with swimbait this season. All bass that I caught were hooked at left side of mouth (see the picture below at "Deep Throat"). It means that when bass bite the lure, they tilt their body to swallow it easier. But why always right side down? Does it mean that bass are left-fined or right-fined? Not sure which way. But it seems clear they always prefer right side down. When you catch one next time with swimbait, please take a look where it was hooked.