Don’t use fascat so I don’t know for sure, but I think their OTS is just TSS but taking recovery into play?
To add, tss is totally fine over a 40 day avg. one interval of 1 ride doesn’t really change the big picture, but I do think it’s an inaccurate representation of acute stress. Certainly tells you your overall load. And yes, I’m just armchair quarterbacking. I don’t have any suggestions to improve haha