I think that your grounding shoes might help in theory as electricity always seeks the easiest pathway to ground. But keeping in mind depending upon where the largest build up of electrons are either in the gathering clouds or in the Earth, the release of the electrical spark to balance the equilibrium could come from the Earth (going up) or the clouds (coming down).
Either way I do not think that it is an experiment that would be advised to conduct on oneself.
Author
J.R.K