[Superfish] Place sub indicators independently

[Superfish] Place sub indicators independently

Hello there,

I've got a little trouble configuring Superfish. I hope this is the correct forum for this kind of question.

I'd like to know how and if it is possible, to place the sub indicator arrows specifically for each level of the navigation.
For example, my top level navigation bar has a height of 40px, and all the sublevel pages are displayed with a height of 30px. The arrows are vertically centered in the top level bar, but not in the sublevel bars.
How can I center them for 40px and 30px separately?

Thanks in advance!