Bummer, @Phil Coulby...but, give yourself a break after so long out! I have found, roughly, the same things. I now only play matches every 6/7 weeks (coz the recovery time is much more now). When I have found I can't react as well as I once could....I now deliberately get "on my toes" during a match. I step quickly while on my toes, and, although I discourage it as a GK coach, I bounce alternately, on each foot while in set-position! I make sure my weight is forward, and very deliberately "bounce" on my toes! (As I said, I don't encourage it as a coach with my young GKs, because I think your feet should not leave the turf (as you might need that split-second push with one leg))...but, I am 53 this year (and off to La Manga again with the NI squad for the Four-Nations Tournament) and definitely need to have a focus during a match to stay alert!