I am having some trouble reconciling conflicting facts about my ancestor, John Randall of Newport and Westerly, Rhode Island?

It has recently been conjectured that our John was the John Randall who was indentured to Ralph Cooper at Gloucester, England, January 14, 1660. However, the colonial records of Newport, Rhode Island show John Randall serving on a petit jury on March 23, 1659/60.

Both facts come from printed documents rather than original documents, so I am uncertain how the dates were originally written, and whether the printed sources used the old calendar or the new. Presuming the dates can be reconciled as January 1660 and March 1660, John would have been serving on the jury 69 days after becoming indentured to Cooper.

My questions are:

1) Would John have qualified to serve on a jury immediately upon arriving at Newport?

2) Would John have qualified to serve on a jury as an indentured servant?

3) As I find no record of Ralph Cooper in the Colonies, what would John's status have been had his master (Copper) died en route to America?

I'd appreciate any thoughts.