I have the pm and am the same height and approximately the same size and it does sit a little high when crossbody so I have a hook similar tto the one on the one end ( from Mautto.com) which gives it about another inch so perfect size for me. It also is much easier to take the strap on and off so you don't have to untie the strap every time, I keep the clip on it.
It's about 110 cms long from end to end without the extra clip or around a 52 cm strap drop.
I’m also the same size and I also feel it sits high. I use my Eva strap which seems to be a little longer.