Re. book "Flying for Fun"
This is a completely different subject - but I have just joined the site, following a Google of "Jack Parham".
This search took me to a thread you started ages ago (now archived) where you were looking for a copy of Jack Parham's book "Flying for Fun".
I may have a spare copy of this if you're still looking - can't promise as I'll have to have a search in some boxes (still not unpacked following a house move).
Just let me know if you need it and if you do I hunt around.