Contest Exchange Question

Bill Garwood

Hi Y'all,
Sometime back, there was some discussion about the exchange sent in the 070 contests.
(Name, S/P/C and 070 number.)
Bill NC 1688 Bill NC 1688 qsl?
Bill Bill NC NC 1688 1688 qsl?
or just
Bill NC 1688 qsl?
Which is preferred and why?
See you in the contest.
Happy Radio!
Bill N4GBK

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