It seems to be too late to edit, so I'll post here rather than clog up the thread with individual replies: thanks, I appreciate all the explanations. I will hav

It seems to be too late to edit, so I'll post here rather than clog up the thread with individual replies: thanks, I appreciate all the explanations. I will have to look up some details but it seems the basic takeaway is 'if in doubt, just use floats'.