downhill - heels or toes with skate skis?

Hi,

As I try to further refine my technique, a question came to mind. When
going into a tuck downhill on skate skis is it better to have your weight on
your heels, toes, or just whatever feels right?

I've notice I seem to travel faster if my weight is on my heels. Is this
what I should feel? Does this get more of my ski off the ground?

I've recently read that on classic skis one should have their weight on
their heels to keep the grip zone off the track, does this logic also stand
with skating skis?

Thank you,

Brian