No, my 800mm bars fitted straight through the Clawhammer tree with a little clearance, lined up centrally.
Do you know Pint Glass on Leith Hill? Theres a claw tree at the bottom of that too, the 800s went through without acrobatics but both ends scraped the tree simultaneously! I was lucky actually because I wasn’t really being careful, I will be next time.
On the Wolvern’s holly, at the tightest point, I lean a tad into the holly just to make sure the other end clears the fence post. It’s just for a moment.
I like my wide bars, the very occasional tight spot isn’t enough for me to cut them down. Overall I find them a big win.
I may perhaps trim my 800s down to 780mm, still faffing with other parts of fit on that bike .. so maybe not.