Yo Newton, This is great! I have never been able to see what is going on in the middle of all those jacks and levers. It always leaves me with a backache and a bad mood. Doing it your way, I made three quick passes, just fixing the obvious odd jacks on each pass. It was remarkable how sensitive my touch was by the third pass. 10 minutes; no bad back; no bad mood. Ed S. Newton Hunt wrote: > As to jacks to knuckles, the basic criteria is how much the jack rubs on the > knuckle when it is being tripped out by let off. > > If you lightly rest a finger upon the shank and use a thumb to move the jack > toe > out from under the knuckle (or not knuckle) you can actually feel the amount > of > rub there is which is a VERY accurate measure of jack location and > engagement > which accommodates different knuckle sizes and locations and will, > ultimately > give you a better touch.
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