I've been thinking about a new shield for over a year. I had narrowed the field down to an F4 or a Vstream. There have been several positive posts for the windbender here. I know DanB loves his. But I and my co-rider want something with more height and width. My previous Wing had the larger Tulsa. Although it did create a bit of a hassle getting on and off the bike, it did make a comfortable ride for both of us.
One of the members in our chapter has had the 4mm thick Vstream for about a year and is satisfied with it. He said if he had it to do over again, he would have gotten the thicker model because although he knew the thinner one would have more flexing, he didn't expect so much. But all considered, he still likes it.
Another member also has a 4mm but he's only had it on for a couple hundred miles and really hasn't formed an opinion yet. He was on a ride with us last week, so I purposely got in line behind him. I noticed some buffeting in the jacket sleeves at his shoulders but less than my stock shield was giving me.
The F4 seems to be the same size and lean angle of my previous Tulsa which I was very happy with. So I'm still in a quandry about which one to get. If it's the Vstream, I know I'll get the 6mm. But both are 2 to 3 times as costly as anything else. Why not another Tulsa? The shape worked well, but the easier cleaning, scratch resistance, and expected longer use of the F4 gets my attention. Hopefully I'll soon come across somebody that has one of the two and maybe zero in on one or of the other.
Flash, give yours a few thousand miles. You may decide you like it after all.
Take care and ride safe.