stack fit to keyframe

[Ric Brekne]

To tell you the truth Cy, I've almost never picked friction apart into 
components. I usually just take up and down weight measurements and 
figure total friction.

Outside of regulation issues... I've found that the most effect on 
jack/knuckle friction comes from;
-- the tightness of the knuckle leather,
-- the Strike Weight
-- the condition of the jack top and rep arm surface.

I wouldnt think the magic line between the whip center and balance pin 
really affects friction at the knuckle/jack top. But perhaps the second 
magic line.. the one Ron Overs has gone out of his way to deal with, 
between the whip center and hammer center significantly affects friction 
there.  I'll defer to Ron if he's listening on that one.

Cheers
RicB



Ric, Bob,

Do those constant friction results apply just to the capstan/heel contact,
or to the jack/knuckle contact as well?

--Cy--