You see that lump in the middle of the blade? Like playdough.
At this point, having got the tie open, I realise why the tie's drape is so poor. The interlining is very lightweight, and half synthetic (the white warp that doesn't take the black dye). The silk itself is very scroopy compared to other grenadines that I have dissected, cleaned, and relined.
I could give the silk a bath in some sodium bicarbonate to get rid of some of the serecin, but I'd have to unpick and resew the tipping to avoid colours bleeding, which is a fair bit of work on a grenadine (and hard to do without snagging the reppe tipping). I'm also not confident of the quality of the silk - it could be very thin and light with the serecin removed. So instead, I opt to reline; new wool canvas, and bias lining to add some weight and a dark background (cross stitched at the tip to keep it in place while sewing the rest up).
Pin and sew closed.
The CT bartacks are also pretty clumsy looking, so I redo them in nice contrasting yellow-gold silk.
And voilà, much better drape. Shame about the sleeve length
Closeup (Click to show)