After basically hibernating through the winter, with only a little cycling to keep the fat off, I have started to exercise again and wow I am weak. In which case it should be relatively easy to make quick progress!
Very tempted to start working with Parallets, inspired by my uncle Richard, these are cheap and easy to make and look to give an awesome body weight workout. Will go down to B&Q when I get back to the UK and make myself a set. I do worry that my lanky body is singularly ill suited to gymnastics type exercises, but maybe thats a good reason to give it a go.