What factors control cell formation in acrylic pour painting?

[Aaron_W]

I've been experimenting with acrylic pour painting for a few months now, and while I love the unpredictable results, I'm consistently frustrated by cells either not forming at all or being too small and muddy, especially when I try larger canvases. I've tried varying my pouring medium ratios, using silicone oil, and even heating the paint with a torch, but I can't seem to achieve those large, defined cells and crisp lacing effects I see in tutorials. For artists who have mastered this, what are the most critical factors for successful cell formation in your acrylic pour painting techniques? Is it primarily the brand and consistency of the paints, the specific pouring medium, or the environmental conditions like humidity, and what's your step-by-step process for mixing and pouring to maximize cell size and clarity?