That's the only way I've ever made pancakes. I've never bought Bisquick in my life and really don't get the appeal!
In my family, we used to take it when we went camping, I think just to have fewer individual ingredients to take. (And then we'd end up getting it at other times as well.) But on that note, a person really could just mix up a container of the dry ingredients needed, then you'd just have to add the milk, egg & butter.
...and anyway you should be using castor sugar and lemons only...
We'll be having that kind on Pancake Day. But today was American-style breakfast pancakes and bacon dipped in syrup - none for DH, all for me!
As far as the Bisquick in the shops now, better get it while the gettin's good if you want some - because I'd be really surprised if Morrisons started carrying it all the time, I think it's just in advance of Pancake Day.