After sponsoring the highest paying PBA Regional ever with a $15,000 first prize last month in the Chicago area, IGrind has announced more details on its next big event. The IGrind Autism Awareness Detroit Shootout Sept. 27-29 at Mayflower Lanes in Redford, Mich. will have a guaranteed top prize of  $30,000 for first, and will pay $15,000 for second and $7,500 for third based on 288 entries. Last cash will be $300 (payout will be a 1-in-4 ratio). There also will be $500 bonuses for...