If you want a real challenge get a Merkur Vision that is a beast. Also looks cool.I'm 76, and started DE shaving about 15 years ago.
I don't think my beard has changed much. My technique has improved, though - my new game is:
. . . What's the highest setting I can use on a Merkur Progress, and not cut myself ?
I've also just ordered a new, really mild razor -- for my old age, when my hand shakes.