History tag, single value?

I think I’m having a senior moment.

I have a number of boolean history tags, what I’d like to do is to query the tag history to bring back a single value for each tag for a specific point in history, and they drive a binding

I’ve done this before using tag history binding on a tall table with a fixed sample size of 1 and a start and end date binding that is the same (the point is history that I want). I then bind the state of the component to the cell data

when I try this now I often get and additional rows for tags and it ruins the table. Its driving me nuts, there must be a simple way.