I’m Pleased that Smith and Wesson is listening to its customer base and bringing back the short-barreled M-66. I’m lucky enough to have three 2 1/2” model 19/66’s, a 3” model 66 along with a 3” model 65, Lady Smith. As nice as the 3” models are they always felt much heavier in my hand and in any holster, I’ve carried one in.
As for the full-length ejector rod difference, I never had an empty hang up with either barrel length. I turn the barrel up 90 degrees give the ejector rod a HARD wack which dumps all my empties, then reload with six then I'm ready to go again.

Remember I a gun does not feel good in the hand you're not going to carry it or shoot it much. No matter how nice a gun is if you don't shoot it or tote it, it does you no good.

Have a great Thanksgiving all.

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Always Stay Strong!