Originally Posted by cybmole
but if you don't need / use chapter skip and don't mind losing features like drop caps or fractional 1.5em indents, or left margin controls, or background shading then yes, go from epub to amazon formats.
PS maybe some of that stuff which was NOT in mobi, IS supported now in azw.
That's why we're talking about AZW3 - the new Amazon "KF8" format - not Mobi. KF8 supports all the features that ePub does.