Thanks Adam for the heads-up.
FWIW the Kickr Bike / Bolt combo handles the Start Wattage / Stop Wattage segment just fine.
With ERG the wattage increase through the segment is soooper smoooth.
I've even considered doing away with the steps in the Ramp Test. The steps appear to be there for ease of calculation at the end of the test.
I could use a single sloping segment because the Bolt will automagically read out the best 1 Min output at the end.
Although, I do find the 1min countdowns encouraging to push for the next one!
Barry