Rigo is a defensive fighter and yup, he is still dangerous and can win matches if the opponent would underestimate him. Against Loma, Rigo doesn't have any luck as the former is too technical of a boxer and toyed him until he quits.
If he will be fitted against Inoue, I think he will be in trouble because he is not too lateral as he used to be and he will be knocked out in the process as Inoue is too strong.
Casimero vs Rigo is somewhat more of a fitting fight for Rigo because Casimero, though tested but there are tendencies that he could be careless sometimes and a little bit too cocky. If he takes for granted this fight with Rigo, this might derail his chance to fight for the unification title.
Rigo should not be underestimated, and I think even if Casimero is too cocky, he was also following the strategy when in the ring, he is very patient, the reason why he won against Tete who is also a champion. I can't wait to see this fight, this should be a good one and probably the best fight of Casimero in his entire boxing life.