Randy at Dixie is the only person I call when I need window sweeps .
I have used Metro weatherstriping on a 1970 Cuda and most recently a 1969 Charger with ZERO issues or complaints. Doors close nice and easy and most importantly the window seals in the upper roofrail weatherstrip really nice.
I'll use ( and will only use) either Randy at Dixie or Holgar at Supercar Restorations when I need weatherstriping.

I tried Softseal on the cuda 1st ( customer supplied it, plus they're local to me ) and took it all back off and dropped it in the trash can .