Tween two surfaces with a set distance between them?

Grasshopper
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1

Hi,

I have a question I have been trying to work around but without success.
I am trying to perform a tween between surfaces but instead of picking the number of surfaces resulting from it, is there a way to ask for a set distance between surfaces?
Which could obviously not be perfectly constant because we’re tweening, but still pretty close.

Thanks a lot, Tino.

2

Ty pufferfish, you can set weights.