I find that if I use a ladle, then the same amount of batter goes into the pan each time - it's the total volume / weight of batter that matters, rather than the thickness. I then try to estimate how many pancakes from the total amount of batter - and then have insulin afterwards for the amount I've eaten, taking into account honey, sugar etc. It's only once a year, so I'm not going to miss out! By the way, I also find the batter is better if I make it a day earlier and keep the measuring jug in the fridge for 24 hours, with just a quick stir before using - no idea why, but it does seem better that way!