Dips, that's how mine went, the last bit to get rid of was pain (gradually decreasing) in the heel first thing in the morning. Then it ended up as stiffness and now is fine.
I can't comment on either of those products as I had a custom-made splint made for me ( I was spoilt
) but I would say try it out - on the other pf thread, we've all said that we've found different things work for us, so what worked for me won't necessarily work for you, or anyone else.
Give it a go, if it works,
, if it doesn't, then try something else.
As the pf contracts back overnight, I used to find that gentle stretching / flexing of the foot and massage before getting out of bed also helped.
Warmth still does it for me - I'm sitting here (at home) in a pair of sheepskin boots - the warmth keeps the pf more flexible, so it contracts less.