I just came across 汹 which is the simplified version of 洶. I was quite surprised as 汹 is not mentioned in neither Chart 1 and Chart 2 of the structural simplification of characters. Another example is 蹤 which is derived in 踪 -, although not being part of chart 1- and despite the simplification from chart 2 從->从. I thought learning all characters from both chart 1 and 2 would be sufficient to be able to find the simplified version of any traditional character.
How consistent is the method of simplification, why publish those lists if they are not used consistently, are there any other characters which have a simplified form not derived from chart 1 and 2?