Well some interesting responses.
Silverclaw many thanks for those links I am today investing in one of the specialized seats to see if it makes a difference.
I didn't know that in some people erectile disfunction can be caused by cycling due to lack of blood flow caused by this nerve being pinched to restrict the blood.
Thankfully the old love wand is still very active so this blue meenie may have been a lucky advanced warning. I will report back once the new saddle has been tried for a while.