Haven't worked with em' all that much. Strikes me that lifting and lowering them off the work, e.g. 'Preloading' the set up could get a bit ponderous.

Guess I'll fall back into conventional trip hammer mode .

Sure appreciate all the input.

GTC

Member, Clan of the Border Rats
-- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain