Now that this thread has been bumped 7 months later, what is your current rating and robustness, @roger.p?
7 months ago, he was just getting established with a bit over 200 games. 160 of those games were from 2010 to 2015 and average about 12 years old. The preliminary rating from just those old games was around 580. The 160 old games carry very little weight--maybe just the equivalent of 10 recent games.
He now has a robustness of 281 (160 old and 120 new) and a rating around 625.
Does he play at 655 speed? I don't know. Maybe.
Does he play at 595 speed? I don't know. Maybe.
There is a lot of uncertainty in our assessment. 625ish is our best guess.