Bowling Balls Tropical Storm

I'm currently using a tropical storm as my main ball. I use a tornado as my spare ball. I am looking to upgrade to mid-range ball. I love my storm, so I would like to stay with that brand ( unless your recommendation is strong). I am a tweener and recently became a sub on a league at a different house. I believe I need an upgrade because Friday I hit the pocket every time and left the 7 or 10 pin. I think I need something that is gonna come into the pocket a little more aggressively. Thank you. ( my tornado warning was drilled with the pin centered because I used to bowl thumbless) hence having no hook now that I use thumb. ( could not excel without thumb)