Sam's grip on the kick serve

Does anyone know what kind of grip Sam uses on her kick serves??

I ask because my trainer advised me to use a grip more similar to the one I use on my one-handed backhand instead of the continental grip that is used on the flat serve. The problem is just that although you indeed can get spin with that grip easier, I found that the technique is harder to master with it (my balls tend to get pulled into the net instead of over it).

i'd say her grip was more of a eastern one - with the kicj serve you really want to be further round than the continental grip so you can generate more top on the ball! If you just remember to brush up and to the side (like a window-wiper) the ball and bend your knees then you should get it pretty soon!!
But yeah, i think she has a really strong eastern grip.

You mean Eastern on the bh right (of a one-handed bh)?