Thank you for the explanation. I'll have to think that one thru.

I still can't get past the point that if TSI X 2240 = PSI
1 TSI would = 2240 psi
3 TSI would = 6720 psi

If the Lead Crusher conversion formula to PSI gives 8938 psi for a '3 Ton' reading, that would seem to be an awfully wide difference from the straight 2240psi/Ton x 3 method.

I'm hopeless,,,and have been told so many times.

I'll keep studying it.
Thank you for taking the time. Always interesting.