I think it's much easier to a transition from thai or k1 into boxing than it is from mma but tbh, i think very few will ever succeed. people mention hatton and klitschko but hatton was a kid when he quit kick boxing, he started boxing at 10, klitschko had an extensive amateur boxing career too. as for skelton, he never achieved as mich in boxing as he did in k1 and i think he came around at a time when boxing was very weak at hw and even more so in the uk.