Resonator cone downforce

[linkous]

Everyone talks about neck and string angle, and the consequences of under string a tailpiece.



But is there anyone who knows exactly how much the ideal downward pressure is on a (National) resonator cone?



Because, using this link you can calculate the downward pressure on a (resonator) guitar bridge:
Downforce 


Seems more interesting than guessing..?



Em. 

[pete1951]

I have never bothered finding the exact total figure, I have however made a device for finding out string pressure. (See pic posted on Nov 18th) I needed to have an angle that gave double the standard pressure. So I found the pressure of 2or3 good sounding resos and then found the angle that doubled it.
Copying a good sounding reso has been my way forward for most builds
PT