Yes; I, too, rely on a combination of Sildenafil & my trusty cock ring. Between them - and the girl, of course! - they make a session satisfactory.
At my age, my main problem after the session is to remember to take the cock ring off and put it in my sponge bag before setting off home. My last Regular & I used to have this 'joke' about my being taken into A & E, having been involved in a RTA on my way home from the punt and trying to explain why I was walking round with a cock ring on!! *shakes head, sadly*