Sweet! I use tig daily as my main git viewer.

Here are some bindings my in .tigrc, which I use in the log viewer window, to make it more vim like:

bind generic g move-first-line

bind generic G move-last-line

bind generic n next

bind generic p previous

I generally use n/p to flip between commits in log view, hit enter to view a specific commit, and then j/k to move lines on the commit view.