[bendbro]

Thanks. I will look into this. I would like to see examples that obviously require algorithm-grouping or type-grouping, as in my experience, algorithm-grouping has always lead to headaches.

I think I have encountered this issue in the past but was turned of by the lack of formality in the discussion. I wish there was more academic, concrete discussion of these issues, because I feel that what I am doing now (informal discussion) likely has many holes.