Not sure if this is the proper section to post in. I would like to suggest an episode where you discuss the various types of solder that a beginner to an intermediate might be interested in. Specifically the variations of Kester solder since they have so many varieties.
Specifically defining visually wetting and spatter, cleaning and solids content. And also solders better for new work and rework. When would you prefer a solder with silver content, etc...
Every formulation number was created for a reason and a demand but their site does not make it very clear.