OK, here it is. I haven't shaved w/ a regular straight in months! My honing skills are negligible. Last time I honed my 4 straights they seemed to be duller than when I started & I cut a chunk out of my thumb! So I've been using DE's, SE & Injector mainly. Also a Monsieur Charles injector blade barber's straight razor.
Anyway, on a whim I got out my Henckels 78 1/2 round point, gave it a good stropping, & it shaved like a dream. It got sharper just sitting for a good long time in it's cigar box. An old timer in a barber supply store where I bought my first straight 30 odd yrs ago told me that sometimes just letting them sit for awhile would improve the edge. It seems he was right. Now I'll have to try the other 3 & see if they have improved as well.