Favorite Hip flexor stretch?

[ny biker]

The stretch you described is a quad stretch.

There are many good hip flexor stretches.

The pigeon pose is one.
this is another



Of course it is. That muscle is larger and tighter.
Just keep stretching

I do the stretch shown in the link, except I also raise the arm and reach upward on the side that I'm stretching. It's helped me a lot. In fact this reminds me that I should be stretching right now.