He looks tired, is gradually losing fitness and had a few health complaints recently. He seems to be enjoying a fresh challange but, given the right tools (and if it was what he desired) to get him back to his healthiest he'd still be up their.
Getting past 30 takes its toll on most sports people due to degeneration, except obviously, marathons and ultra marathons were it takes time to adapt/degenerate the body in order compete at the top level.
For most sports its a battle against fatigue and postural misalignment making it a greater challange. (dougie included) Riding trials causes a great deal of upper crossed syndrome and moves the body further from its optimal alignment...
So why is Troy Corser still riding WSB at 36? George Foreman won a world heavyweight title at the age of 45. Michael Schumaker was racing at 38 - there are more people i can think of but most importantly Jarvis is younger.
Upper Crossed Syndrome: This syndrome produces elevation and protraction of the shoulders, winging of the scapula, and protraction of the head - so does this mean your head will fall when you ride over a very large rock? .....this toilet talk is getting to CT league.
Troy Corser was riding moto GP but was to old and bumped back to WSB with all the rest of them.