Originally Posted by
OldTryGuy
Not for SW FL.

Around here you're talking 50'/100 miles and that means going over canal hump-back bridges.
Do you have GPS estimates of a typical 50 or 100 mile ride?
Here is a recent ride I did. Strava lists it as 2988 ft of climbing.
A few rolling hills at the beginning.
A couple of rolling hills in the middle and a couple of plateaus to climb.
The gentle rise and overall gain of 300 feet is essentially imperceptible.
Overall, I'd call the ride mostly flat.
Norboo's ride appears to have about twice as many hills. Or, perhaps the same number of hills and half the distance.
I recently went on a ride that averaged a bit more than 1000 feet every 10 miles which I'd call downright hilly. Even a Swiss rider might have considered it hilly, although they might have missed the long mountain climbs.