Underwater boilies vs pop up - what is better for carp?

Do carp prefer boilies or pop up? This underwater video might help to answer some carpfishing questions.
***Subscribe: bit.ly/Subsribe...
Music: Kai Engel - Oecumene sleeps, Kai Engel - Walking barefoot on grass, Kai Engel - River, Kai Engel - Changing reality, Kai Engel - June, Kai Engel - Hopes and dreams, Kai Engel - Ode to the world, Mscaras - Going home