I am attempting to adapt the tufte-latex style to typeset a Ph.D dissertation. The style currently uses the natbib/bibentry package to insert full-text citations as numbered side-notes, and also emits a full bibliography at the end of the document. I would like to modify the document to use a shorter cite format (showing "et al" rather than full author list; removing URLs/DOIs/etc) for these side-note citations, but retain the full citation at the end of the document. I'm also leaning heavily towards using biblatex instead of bibtex, for a variety of reasons.
So the question: is it possible to create a custom, abbreviated citation style and instruct biblatex to use it in some places, and the primary/standard style in the main bib? I don't mind defining a new command (it's not necessary to redefine
\fullcite, I'd rather use
\abbrevcite or something).