The 5-7 split converted BOTH from the left side of the 5 pin. one to the right side of the 5 pin with flying 5 pin

The 5-7 splint converted BOTH from the right side of the 5 pin & to the left side of the 5 pin: just use a light weight 6 lb ball!

I used the Mix 6 lb ball Urethane ball by storm. I have NOT had the ball drilled yet so I palm throw the 6 lb Mix made by Storm.

THE ONLY REASON I USE URETHANE PLASTIC is because its way stronger then polyester & does NOT chip up REALLY, REALLY bad in the thumb & finger holes. bowling ball of any weight should have NEVER been made out of POLYESTER plastic. it chips up way too easy. urethane does NOT chip up.