An enhancement to the mulligan feature I would like to see is the ball remaining where it finishes, so that eventually after say twelve mulligans, you will have twelve balls on the green.
That would be cool, and it would also make u have sufficient balls in ur bag to do it, unless u were using the starter ball.
I think the time has come for WGT to sell balls in dozens at a discounted price, that is how it is in real life all over the world.