12 demo's
here are the screenshoots to see it faster
http://www.badongo.com/file/2691991
shot17: u jump from an invisible wall to the building ahead ( 333 fps ) and then u jump from the ridge of the building to the middle top of that building
shot18: from the middle top of that building u jump onto the chimney
shot19: u jump from the chimney to the other roof
shot20: again a nadejump onto the chimney
shot21: from the chimney to the back of the building
shot22: from the back of the building a strafejump (250fps mayb 125) to the redish building
shot23: again to the middle top of the building
shot24: from the middle top of the building onto the chimney and onto the building
shot25: pretty hard strafenadejump on the redish building ( performed by louw rest by me

shot26: again to the middle top of the building ( or over it doesnt matter )
shot27: across the windowledges to the other roof
shot28: jump off the windowledges onto the roof
shot29: u can jump on the middle top of the building again ( 333 strafejump or 125 or 250 idk ) and then 1 or 2 other roofs are availible but i cba to do it now mayb tomorrow
finally spend over 4 hours at this jumps

and no i didnt used jump_height 65, or grav change, or g_speed change
EDIT:
i made an addon for rhine5
here it is http://www.badongo.com/file/2695155