The other change I made which I was actually really pleased with was to use an eating apple instead of a cooking apple. When it came to grating it, I decided that instead of using the coarse side of my box grater, I would grate the apple on my Microplane grater. This meant that rather than being distinct pieces the apple was essentially pulp, which I think must have contributed to the gorgeous moist texture of the cake. It also got rid of a rather large slightly mealy apple that was sitting in the fridge and on my conscience!
NB That's not my box grater, but it's similar in style! The microplane grater is sold as coarse, but it isn't really - it produces mush!!!
I just can't say strongly enough how delcious this was for a ginger lover - the cake was moist and rich and sticky and gingery and just fabulous! Have I said enough? Make it, you won't regret it. Everyone else loved it too - apart from those on diets who had to resist.... mean? am I ever!!!