Can anyone who is tech savvy post both videos together side by side? Think it would be appreciated by all and then some!
In my bag: Roto Grip UFO, Roto Grip Hyper Cell Fused and Roto Grip Hustle hyb
League High Series: 745 (12/23/19) High Game: 300 (11/23/15)
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The 7-10 shot is not illegal. The video is old 5-6 years of so. It was on the internet before. I think it was a tournament some where in the SW. The only rule is which hand is dominate. New rules about the thumb hole being a balance hole if not used in the delivery.
Currently that spare shot would be considered illegal. At the time maybe not, but since then yes it would be. Here's a reply from usbc on the subject and one of the members here also has a reply recently saying the same. Key words are "approach" and "delivery"
This is in regards to your email below.
An example of a two handed delivery is the bowler who puts one hand on one side of the ball and the other hand on opposite side of the ball and throws the ball between their legs using a rocking motion. Or, holds the ball in the middle of their chest and pushes the ball forward simultaneously with both hands. This type of delivery cannot switch back and forth between a one handed and two handed delivery.
From our observations of most bowlers who have been described as using a two handed delivery, both hands do not impart equal force or impetus to the ball. One hand or arm is putting more force or impetus to the ball. Therefore, we would not consider this a two handed delivery bowler. We would consider this a two handed approach.
This type of bowler who uses the two handed approach could alternate their release between two handed approach and one handed delivery provided the same hand is being used to impart equal force or impetus to the ball for all deliveries or vice versa. Separate averages should not be established.
USBC holds it is acceptable for a player that uses a two-handed approach to use the dominant hand for spare conversions or vice versa.
Since the youth is using a two handed approach, establishing a new average is not required.
Please let me know if you have further questions or concerns.
I have a hard time believing he guy who wrote that is a bowler.
That's how it's defined in the rule books
USBC Equipment and Specifications Manual
Two-Handed Techniques
Two-handed Delivery
Both hands impart force on the ball to get it down the lane; normally done by swinging the ball
between one’s legs. Differing greatly from the two-handed approach, this style is most commonly
used when youth start to learn how to bowl. Individuals who deliver the ball from the chest using
both hands would be considered to be using a two-handed delivery.
Two-handed Approach
Not to be confused with the two-handed delivery, this style places both hands on the ball and
are left on the ball throughout the swing until the release. An evolution of the thumb-less technique,
this can be done with or without the thumb on the dominant hand in the ball.
It’s important as it relates to USBC rules regarding averages and drilling specifications to know
which hand is the dominant hand. This is determined by the side of the body by which the ball
swings and, if utilized by the player, the hand which is used to grip the bowling ball.
This particular style has been made popular as it enables the bowler to create additional
revolutions.
Right handed Stroker, high track ,about 13 degree axis tilt. PAP is located 5 9/16” over 1 3/4” up.Speed ave. about 14 mph at the pins. Medium rev’s.High Game 300, High series 798
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