If you have good process control, I'd certainly prefer pulling to flashing the film, which tends to spoil the sharpness and differentiation of the shadows. But I gave up both once Fuji came up with a triad of films for different contrast situations (Astia/Provia 100/Velvia). Now that the selection of these films has become limited again (at least for me, in sheet version) and Kodak color neg films have been dramatically improved, it's a whole new ballgame.