I see it enhancing depth of perception making everything 3D when bright lights are present.
Trust me on this my friend,I`ve seen months of hard work go down the tubes due to that stuff.
It literally fills in cuts and ruins months of conditioning.
To apply in the best manner possible,one should just put dabs in the form of spots on the competitor and with the hand,"pull"/brush with the fingertips the
slop 
to the sides.
He loos great though,but IMO,would look far better with Pro-Tan and some Pam or "Hot Stuff".
At any rate,good luck to you guys.