You certainly have a fantastic looking and well presented bike, and the statement quoted above, is all that counts.
I wasn't trying to push you or give you a hard time, and your current experience with the bike, probably resonates with many users. The cut off point can be very frustrating and annoying at times, but in my case, I think that I must have learned to switch off to it. I should really have expanded upon my original reply.
With the off road riding that I do, I guess that if I am with others on pedal mtb's, then the average riding speed can be as low as 6mph dependant upon terrain, where as if I was on my own and not too concerned about the battery consumption, then the average might about 10-12mph over the same route.
More often than not, on many of the routes that I use and climb, it is an impossibility to get anywhere close to the bikes factory cut off settings. This is because the terrain dictates the speed. Even when riding say on a wide open space, I would probably still struggle to maintain a climb rate of 12mph on even the most steady of climbs, so the factory set cut off point isn't an issue to me. If riding on say our local levelish old railway line, now cycle path, then my average speed will increase to anything from 18mph - 21mph over a distance of several miles. I'd be pushing hard for this, and would probably be more comfortable at what you have already discovered to be the irritating cut off point.
Remember that speed will also cost in terms of battery duration. The 400wh battery doesn't exactly offer that much when used off road.
In relation to suspension, that's a pretty mixed one, and jumping from a hardtail to full suspension when I did, the weather was still kind enough to make use of it. During the winter months, it has just been a pointless waste, as it just adds weight, and additional maintenance. Stick with the hardtail, and perhaps if you really fancy suspension on the rear, then compromise with a suspension seat post.
Enjoy the bike.
edit... Have you seen this thread?
http://www.pedelecs.co.uk/forum/threads/how-many-people-are-using-there-e-bike-off-road.15780/page-23 It might be of interest to you.
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