Steve will be doing well to have maintained the differential at 750 miles come early spring, let alone return to the averaging 205.7mpd.
Steve is fast approaching the furthest behind the Godwin average that Kurt reached (and which Kurt hit earlier in his challenge, so had more time to make up the difference).
I read this as meaning that Steve has more to do than Kurt did at the same point in his challenge, and he has to ride through an uncertain winter (at the same point, Kurt was just entering spring/summer).
It's also looking touch-and-go whether Steve will overtake Bernard Bennett's mark from the 1/Jan start attempt (this had looked on for a while). The longer he takes to adapt to diet and weather, the less likely this looks (he can just about do it with daily Godwins).