I just returned after 4 years off and i am looking to buy a new ball. I was always partial to brunswick and track because all of their equipment rolled great for me. dont really like storm or hammer much and columbia is alright to me. I was looking at the following balls and was wondering if you guys had any opinions.

505T
Mission
C-System 4.5
or anything else you guys recommend

I am a tweener who throws between 15-17 mph and i currently have a track tantrum and a columbia Momentum that i got for free. I will be starting to bowl tournaments and am going to nationals also this year.
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Avg- 226 on THS
      195 on PBA League (back in 06)

Coming back after 4 years off...