Ha!! My choice was the reverse.
I used a Parker 45 from about 1960 - 1967. Usually UN-posted. I don't remember why...maybe it felt easier in the hand?
Now, I post any pen that can be posted. Most often write with a Parker 51 or a P-75, which seem designed to be posted easily. An Esterbrook SJ needs to be posted...otherwise, it feels too short.
I use unposted on the 45's as much or more than posted. I think you are right though - feels easier. But don't you love the look of a posted 45?
And with Estie's - I am with you there - the SJ always posted and the others depending on mood. 51? Always - but not because of length. Helps locate the nib.
Al Star, TWSBI's, Jinhao 599, True Writer My TW is heavy (30 g), brass body, doesn't post real well. So these are pens I don't post.
Pelikan M200's - unposted mostly, but both ways.
Waterman Phileas- same as M200. It does have nice balance posted though.
"Words are, of course, the most powerful drug used by mankind" - Rudyard Kipling
"None of us can have as many virtues as the fountain-pen, or half its cussedness; but we can try." - Mark Twain