yeah I’m happy to do so! I think its interesting that grids slow you down. For me it is a one time commitment at the first stage of designing a new product, which takes about 10 minutes. After that the guides help me make informed decisions throughout the creative challenges ahead. I talked a lot about consistency in the article. The grid helps placing new elements in accordance to the ones already present.
If now all elements inside a component share similar rules about placement and margins, they are easily interchangeable and allow for fast prototyping and iteration even at the final design stage.