I finally got myself a few Pro Nucs. I ordered one last year but it was back ordered and I cancelled. They came today. They appear to offer plenty of ventilation. I pack my cell starters with bees so good ventilation matters. How well does the Pro Nuc work as a cell starter and does it provide enough ventilation with both ends and the top vented? If it ventilates well enough then I'd like to use it and graft this Sunday.