Yeah not a bad idea I’m hoping first few weeks will see a significant jump once getting used to the intensity again and then it’ll be back to the serious hard work
Dig out their blog on ramp rate, the actual TSS number is pretty arbitrary but how much you try to grow it each week (and periodic rest) is way more important so you don't burn out.
I'd say take what you now have, and improve it. Forget about what your previous might have been :-)
Otherwise, you won't see it as improvement, so much as "I'm still not back at 270 yet!"