Troubles I faced with pour painting

Sometimes, When the paint is too thick on canvas as in the enough paint hasn't been runoff, it could cause cracks in the painting while drying later. It happens coz the upper layer dries faster than the lower layer. Also if a source of wind like fan etc is on, the upper layer will dry quicker compared to lower layer. Also if u pour using a cup for example, and the paint is almost over and I squeeze the bottle. Never do that, if u see that the bubbles r coming in your cup. The bubbles later deflate and will cause drying smoothly problems, leading to cracks and seperation in the piece. It will ultimately ruin your carefully crafted painting. And we don't want that. I have atleast till now, not used any pouring medium along with my fluid art. So I guess that part also might be tricky and may have some troubles. People who have that kind of experience can comment here. Also if anyone wants to share more of such troubles they faced, can comment here. Better to know soon, than later.