: Me too.

: To check the strongback is stable, you could string a line along
: it, and mark the line. Then leave it for a few days to be sure
: it is not warping any more. You're going to be checking the
: alignment of the forms along the beam anyway. And once the first
: few strips are on (even once just the first strip either side
: are on), that will stiffen it up a lot.

: I had about a one inch warp along the beam, which was fine to work
: around. (Be aware of it when mounting the end forms though -
: very easy to mount these pointing off to one side! Note the
: pencil centreline along the beam, it goes almost to the edge in
: the middle.

: Cheers, Ian

Thanks all,

This is all good advice. I'm still curious whether anyone has used the spacer and wedge method and whether this will indeed straighten the beam when tightened. I have built myself a pair (actually 3 pairs) of the stands Nick describes in his book and they hold the beam quite nicely.

Dan