At 17:08 -0500 30/7/10, Michael Magness wrote: >I believe .400 is too deep for a Boston & may be adding to your problem. >The Bostons I have regulated all were dipped at 10mm +/-.3, with a 47mm blow. 0.4 inches is 10.16 mm., so isn't that within your range? Anyway the proper touch depth for a 47 mm. blow is whatever will bring the jack back just clear of the roller and not pressed into the slap felt. Numbers are no use at all if they don't produce the proper behaviour. JD
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