In Div 2c, my best placed rider (Kevin Winn - 99 Flat, 70 Hills), loost 45 seconds in S1 doing Watcher, but was able to get back again in S2-3-4, doing watcher-watcher-watcher. Lost another 32 seconds, going watcher in S5.
There was a regroup in sections 2 and 3, which indicates different terrain, in my opinion.
So I would say S1 was not flat...
(and yes, I forgot to set orders
)