I couldn't have said better! But I'll go further to say that the Wilbers actually gets even better after a few thousand Km. I fitted mine in June this year, and since then done over 10,000km with it.
I recently rode from here in Northern Germany, down to Villefranche sur-Mer, near Monaco, to see my old schoolmate. I took my time, doing on average 500km per day. I rode in total, 3040km in nine days, on the Bobber, via Freiburg, Montreux (Lake Geneva), Geneva, Grenoble, Gap (Napoleon Route), Monaco.
The return trip took me via Savona (Italy), Turino, Aoste, Montreux again, and back home.
Cruising at an average speed of 130-140km/h, I had no fatigue apart from normal tiredness later in the day.
I attribute this largely to the Wilbers set-up I have on the bike; I have also the fork-springs and fork-oil from them.
The roads and highways in Italy are in a pretty miserable state, but still no fatigue.
The shock does indeed make the bike ever so slightly
higher; it's 9mm longer than stock; giving us a good 10mm more negative travel. Any bike suspension lecture will tell us how important this is.
I'll post a more detailed story of my travels earlier this year, when I get the time in the near future, with some pics.
For now, here's one of "Guinevere" packed up, somewhere in the French Alps near Grenoble...