Hey John, I missed it.......Ted

a good trick I learnt early with the tipton bar clamps (we call em' cage clamps), if ya got hi-lo, get both ends in the clamps use a spacing tool to get yer gap, lock up the clamps, take a big hammer and hit the clamps TOWARD the high side, presto, no more hi-lo.  Although this is really only good for pipe up to about 8" or 10".

They're expensive, but few tools will do what they do.  I just finished a pile driving job with 36" dia., 1" wall pipe piles.  The fabrication to be attached to the heads required that the pile tops be round.  Rather than buy the right tools from Mathey, the contractor attempted to use come-alongs, hammers, long pry bars - and more than blew what the right tools would have cost on his labor.  In the end, the contractor had to request the top connection be re-engineered (at his cost) so the thing would work.

Bob Garner