Trueoo7,
The Hood-Lock slip-fits on to the gaslift shaft and then it is hitch-pinned, so it won't fall off. The hitch pin does not grab the gaslift shaft and there is no modification to the gaslift at all. It takes about 10 seconds to attach.
The "REMOVE BEFORE FLIGHT" flag is attached to the hitch pin, so it won't get lost easily if you drop it and it's a cool reminder.
Once you see it, you will probably say "Why didn't I think of this?"
A simple fix to a common problem with earlier BDR's with the 4041 type Gabriel Gaslift hood prop.