get some pipe "the gray conduit pipe seems to last longer"
48" should be the max,that might even be too much.
cut along stamped writing

at one end mesure over 4" and the other end 1" make line, cut.
mesure 4" form 1" side make line, cut.next thing ya know ya got a hole stack of 5

weigh them and grind then dowm to the lightest,



make them all the same.
and there you go.
i knew that weight watchers scale would come handy some day.