Got my bracket in the mail and mounted it up today - the bracket looks NICE! As I was unpacking it I was wondering if I'd mistakenly ordered parts for a 1954 Oldsmobile F-88 - in other words,
wits' end is making sure you receive the parts in perfect condition. The packaging was
almost as impressive as the bracket itself!
I did notice that the lever for the seat slider would likely interfere with a hinged lid though.

Other than that, you can see in the pictures there is gobs of room for the bracket and extinguisher in all seat positions. Also, I left the supplied washers off the bolts because of a clearance issue with the release pin on the H3R bracket - not something anyone else would need to do unless they are running the same bracket I have.
All in all I'm very happy with the bracket and my experience with wits' end save one thing - NO STICKERS!?! Come on man, that's just wrong.
Seat slid all the way back:
Still all the way back:
Seat about 2/3 of the way back, showing clearance of the slider lever. Note my slider lever is missing the factory plastic "handle":
Same seat position as above:
Seat slid all the way forward: