After diving into smart components I realised one little thing that might make lives easier which is not present yet. It could be useful to be able to sync smart component sliders across different master layers in the Smart Glyph Settings. That way using the sliders in one master would automagically adjust that setting in every synced master.
Another more flexible option could be to have a Enable Master sync checkbox in the Smart component settings window.
I am aware it would not work in every scenario, that’s why it should be optional.
I think the actual behaviour should stay as before + the checkbox for those who want to use it. The way I set up my components and anchors, I have to change the smart parameters twice (light and bold masters) to exactly the same value every single time.