Kruzzin5, I would not recommend the washer trick. Guys have done it and got away without anything breaking. OTOH, you are going to be putting a lot of stress on the holders by making them solid. It is perfectly normal for there to be movement with dampened bars.
Here is a post I made a while back of real failure when deciding to go with solid mounts:
https://www.yamahasupertenere.com/index.php?threads/bar-riser-flex.26752/#post-376503
We came across him while running sweep on a charity ride. It's not a Super Tenere but you get the idea. Fortunately he walked away from it. Please note the picture. The holders snapped off without warning. He too decided to use flat washers to make the mounts solid. He did the same exact modification the Super Tenere owners are doing. Just a different bike. We have to be very cautious when doing modifications outside what the engineers designed this for. BTW, the date date stamp is wrong. This was just a few seasons ago.
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