Recently I've been following this blog.
The guy is a waffle historian/cook, and works a lot on his recipes, also he uses some unorthodox techniques, that makes a lot of sense and achieve great results.
Heating the eggs on a hot water bath before using them, and using all wet ingredients above room temperature (43-50 C). wich really makes a difference on waffle making.
He has some great recipes there and a lot of experimental ones.