I don't know which came along first, probably Wild Bill's, with MCL following the same pattern. Wild Bill passed away a while ago and Garauld (here on the forum) started producing a very similar design, and I think still sells them. I believe all three were similar enough there wasn't much to choose from between them--somebody correct me if I'm wrong.
I've had mine (from Wild Bill) on both my FJRs, probably 125 K miles so far, and I wouldn't be without them. But this is important--none of them extend far enough out away from the bike for me. At least on my two '05s, there is a sharp ridge in the fairing that both keeps me from resting my boot comfortably on the peg and presses irritatingly against my leg below the calf when my foot's on the highway peg. I used to have to balance the ball of my foot on the knob at the very end of the peg.
But here's my solution. I found a set of extensions that brought the footpeg out farther from the bike and also extended it farther away from me. The ones I found (used) were from Kuryakyn. The pic is not exactly like mine but close--they make a lot of styles, mostly very Harley-looking, and all way too expensive, but the pic gives you the idea. I wish one of our handy guys here would make some FJR-specific ones. The important thing is they have to be set so the extension goes
forward, toward the front of the bike, not down, where scraping would be more of a danger. I have never scraped my highway pegs or extensions (they do fold back), but they give me a lot of relief for my knees and legs, and also offer a temporary break from the blast of engine heat on my legs--at least as important to me. Just putting one foot at a time on there offers a lot of seating variety after riding for a while, too. Think you should do it.