Lobby Coin Counter Question

This is more of a technical question than anything but does anyone know a Cummins Jetsort coin counter goes about its counting?
My suspicions of an already awesome machine were confirmed when an IH was spit back at me in the rejects. Since I began using the machine it regularly spits back old(er) wheats (approx 1941 and older) and as mentioned before Indian Head pennies.
So:
1) Sorting method for Cummins Jetsort?
2) Best lobby coin counter ever?
My suspicions of an already awesome machine were confirmed when an IH was spit back at me in the rejects. Since I began using the machine it regularly spits back old(er) wheats (approx 1941 and older) and as mentioned before Indian Head pennies.
So:
1) Sorting method for Cummins Jetsort?
2) Best lobby coin counter ever?