One quick suggestion here…
If you are not already doing this, try spinning the SS workouts at between 85-95 RPM. I have a naturally-ish high cadence and spin around 100-105 RPM on the trainer. Lowering your cadence to the Coach Chad prescribed range of 85-95 will likely tax your muscles a little more and you might find them more challenging.
I have to concentrate to keep my cadence around 90 and the sweet spot work feels a little too easy to me at my natural spin rate. It’s more uncomfortable when I’m down in the muscle range.
I just recently discovered this and have exactly 1 workout under my belt doing this…so your mileage may vary.
Good luck!