Hey all, I just received my XR (I already had a +) and installed the Flight Fins/Fender/Shield to it, figured I'd give a thumbnail of first impressions.
Background: I got these strictly to help me get up and over small obstacles like curbs without stopping, not to go flying through the air on big jumps - props to all you beautiful madmen who do, but I'm a cruiser, not a trickster.
I haven't mastered jumping yet - my first attempt I fell over on landing. I'll get there with some practice.
Pros: Man, even just cruising around I really like the "locked-in" feeling you get to the board - when you hit a rough patch your feet don't get slightly bounced off or shifted around, and on turns/carving you feel extra stable. (Note: this could turn into a Con if I ever need to bail and the Fins catch my feet on exit. Further testing needed here).
Cons: I'm getting a lot of "false starts" right now where I expect the board to engage on leveling and it just noses down. I think what's happening is due to the stance I'm using to get my foot under the front fin, my heel isn't making as solid contact as usual with the sensor. Once you're moving that's no issue, since as I said in Pros your foot (front) feels glued to the board and is going nowhere, but it's made for some silliness at startup time, and while that's no big deal in my backyard, I wouldn't want it on the street as I mount up to make a stoplight or something. Hopefully this is just a matter of practice.
The Fins are a bit fussy to get attached to the Flight Fender, as far as getting the nuts and bolts threaded (to ensure the bolts don't contact the tire, they are EXACTLY as long as needed, and no longer), but it's doable with a little elbow grease.
The Flight Shield is...eh. I'm not thrilled with this bit. The Fins and the Fender are bolted VERY tightly together (see prior para), and prying them apart to slip the Shield between them is pretty difficult, and TBH I don't love doing it, as it feels like it's not good for the Fin/Fender/attachment between them to do so (I don't really want to be loosening the whole assembly over time or placing additional stresses on it, even though it seems fairly tough).
And once it's there, it looks...kinda chintzy. I guess I'm glad I have it, but I'd really prefer FF just go all-in and make a complete, one-piece sturdy fender, or work with an existing fender vendor (heh) to produce a FF-compatible model.
Further reports to follow, all FF-usage advice welcome.