Normall microtype tracking loosens the tracking of small caps. However, with fontspec's \setmainfont{ebgaramond}, small caps are completely disabled and I get a loose normal text,
as opposed to
with the corresponding font package and normal pdfLaTeX. I want to use LuaLaTeX for some fancy ligatures, and XeLaTeX messes everything up.
Using the ebgaramond package in LuaLaTeX doesn't help.

microtypedoesn't go well with luaLaTeX. – Sep 12 '13 at 00:04\usepackage[tracking]{microtype}but while not interfering withmicrotype's other duties? In other words, can I achieve this effect while keepingmicrotypefor my other stuff? – Simon Kuang Sep 12 '13 at 00:06Renderer=Basic(see here). The upcoming version ofmicrotypewill also work with theFullrenderer. – Robert Sep 12 '13 at 17:12