Breaststroke and Butterfly Separated Hands Interpretation
Although USA-Swimming has officially changed their interpretation of the new rule that hands must be "separated" when making the touch at the turn and finish of butterfly and breaststroke, there is no real change to the application of the rule.
The touch is illegal when the official observes that one hand is stacked on the other, or one hand is directly on top of the other. Although the FINA interpretation does not show examples of hands that overlap but are not stacked, I would recommend that officials only make a call when they observe the hands stacked one on the other.
If both hands are positioned so both can contact the wall simultaneously, then no call should be made. Benefit of the doubt goes to the swimmer.
Penndel Officials Chairperson
A picture of the legal and illegal separated hands position as defined by FINA