Different boats in the same series.

[Mark-1]

That would certainly be the case hereabouts! Two different boats in the same series = two different entries.
....And a great many DNCs on the score card for both boats. Correctly so, imho.

Years ago, I did contemplate something similar, a big Rooster 8.1m2 rig on the laser for summer Wednesday evening series (predominantly light winds) and a standard 7m2 rig for Sunday morning series.
Then work commitments got in the way...also meaning a great many DNCs.

And when you think about it "creating" additional DNCs can be a competitive advantage.

If you've got a good turn out with average results you could enter your entire extended family to scupper the people with poor turn out and excellent results.

But I keep coming back to - if its a decent wind and I'm going for a sail around, it might as well be in a race.