Yeah your deadlift isn't bad, it's pretty damn good haha.
I feel the same way and that's why I eventually want to see how far I can go with it. Doing hook grip is optional so nothing I do for it takes away from training in general. Cparker recommended to use hook grip for as many working sets as possible and use hook grip holds to desensitize the thumbs and develop the hook grip strength.
I feel like I get better tightness when using the hook grip, which helps prevent imbalance from one side working harder. I've been adding extra work for my weak side. I could take the same approach as T3hPwnisher by using straps for general deadlift work and training grip separately but I want to give hook grip a try first.