Welcome

Thanks, Rednaxela's idea looks a lot more complicated than what I was thinking of!

Just talked to User:Rjcroy I've been informed that regression line fitting is likely to be highly unstable for anything other than a straight line fit. So probably not worth pursuing, as linear targeting is pretty well understood. It could provide a way to get a best fit on a robot that's oscilating or something, but probably not going to be particularly good. Worth looking into these ideas though, who knows when the next break through will come...