So I picked up this hatchling rack a while back and it's a great rack but what I didnt realize is that it is so tightly built that it is impossible to snake the heat tape for belly heat. The only other time I have used back heat was with some leopard geckos and I did see a significantly slower growth rate than with belly heat. What are your experiences with raising baby balls on back heat v.s. belly heat? Any difference? Big difference?