Headlight - push car right up against a wall, make a mark on the wall at the same height as your headlight (bit of gaffer tape works well), roll the car back 20-30ft, adjust aim until it's level with the tape, no higher.
Carbine Lorraine (any / all of them) are a different league to DS2500. The reason you get such mixed reviews is the same as trials brake pads, some people can't ride / drive, and some people can. It should be mandatory that any pad 'review' is accompanied by a video
Mind. Blown.
The bushes are only for rotation, they don't / aren't designed to prevent shifting sideways. The drop links should help with that but the 'shoulders' are a good idea...
I'm perfectly happy either way. Got a few ex trials / very part time rider mates who haven't use the forum for years who would probably be up for filling in if that helps