I always thought the title of Ranson's book was unfortunate - nothing of quality is ever executed fast or loose. For me dear old Ron doesn't rate alongside Trevor Chamberlain and I note he included some reproductions of Trevor's watercolours in later chapters of his book. In fairness to him though he did introduce beginners in watercolour to a brush that develops confidence to boldly apply first washes and build on them.
I never owned Ron's book and I was tempted to buy it for old times sake but – no – I was seduced by 'Nature's Engraver' a biography of Thomas Bewick. Just shows I can rarely escape from an OXFAM bookshop without buying something.