Crud on the engine is another reason I put mine back on. I end up in the rain too much and a fender is just too nice to have in the rain!
As before, I tried without it and I could feel the twist. These forks are only 35mm and not that thick. If you go without and do not take corners at speed, you will probably never notice and issue. While I do not have much for corners in my area, we have LOTS of crappy roads, the fork twists way more with no brace.
To this day, if you look hard enough, people still make stronger braces for their 750s but they do hard cornering.
Would I take my Cb on the tail of the dragon without a brace? Depends, am I stuck behind a harley? If no, then I want a brace. If yes, well I will be going so slow I might need training wheels!
It is a personal preference thing but there IS additional twist without it. Take the fender off and put the tire between your knees and turn the handlebars. Now put it back on and do the same thing. Most people see a difference. Only you can decide if it bothers you.
I will not say a person can't do it, I just want them to know that the forks twist more without it, the rest is up to them.
The ride IS the adventure. The destination is just to get gas!