you have to do just the right [scale] function. it's a little tricky to get the right mapping, because you need floats first (so you have full sizes in each grid cell), then you use ints to set a [gate] to split things around. probably there are other ways too, but this seems to work:

Thank you, sometimes when sitting in front of Max I get a little stuck in my ways and I end up banging my head against the desk due to the fact that I don't see other ways around it. This is a very simple solution, thank you very much.

Don't worry, I only had this solution because I did my own share of head banging in another similar project, believe me...happens to all of us I think ;)

There definitely are a lot of tweaks you can do with [scale] and [round] and converting to and from ints and floats...sometimes it just takes a lot of experimentation to get what you want.