Angle outjog with 'sandwich'

[iwannhs]

I am new in card tricks and i have a problem with the angle outjog.
when i sandwich a card(ex. JH|AS|KH) when i try to angle outjog them,they all move as on card ,so if i push the JH and KH in the deck the AS comes from the other side(something like that ▄- but in the center of the deck '- is the AS')
I try with different pressure and deck of cards but I cant get it.Any idea on that?

 

[danielmontagne]

put your index finger on the end of the deck , not under

 

[iwannhs]

do u mean pinkie?
coz with pinkie works good enough now
-index finger got it on the right side,down from the outer right corner