Whether using crayfish is effective also depends on your fate 😠 Some models just don't match your luck 😠 Others may work well for you, but you find them awkward to handle, as if the model is possessed by a ghost. The model I used before really made me feel like an idiot all day, repeatedly making me so angry I cried. After changing models, I was so happy I didn't want to sleep at all and wanted to tinker with everything. "Our minds are as one."