How long to spend learning letter pairs?

[Leo123]

Me and Bertie use Y instead of X because it's so much easier to make words with Y.

 

[cmhardw]

I like the double up idea for letter pairs as long as your doubled image doesn't conflict with another image or another doubled image. As a general rule I stick to one pair = one image, but I will always use whatever comes to mind first when I see a letter pair. This has led to me rewriting letter pairs sometimes when my prepared image is hard to remember and some other image always comes to kind first.

I took about 4 months to create my own letter pair list, with help from a previously written list. The more work you put in outside of BLD solving, then the easier your solves will be letter. I've found that to be a good general rule of thumb for BLD letter pair memo.