Thank you for your feedback! Probability is measured by using 1.0 to represent a 100% chance. So for instance 0.1 would be 1/10 chances and 0.001 would be 1/1000 chances. Though, when I find time I do plan on basically revamping the whole "probability system". I find that an area typically becomes ugly after prolonged use due to the fact that any block could potentially change, no matter how often a player actually walks over it. So... here's my current idea... I like your idea of adding configurable probabilities, but what I think I'll do is track when each block that has been stepped on and update a counter for that block. Then in config I will do as you suggested and add a probability setting along with a threshold setting. The threshold will act as a limiter so that each block must wait until a player has traveled over it enough times, and once the threshold is passed the probability will kick in. Anyways, that's the simplest way I could think of to describe how the current system works while also explaining what I plan to do and how I plan on implement your ideas. Once again, thanks for the feed back.