The hibridization is not an objective in itself, but rather responds to some concrete necessity. I could recommend you an analysis methodology so that when applying it to the design of machine elements you could to formulate the mathematical model of your task and it probable decomposition and, also, a description of the Integration of Variables method that allows to hibridize any methods, by the reason it idea consists on making evolve populations of solution codes by any operators. In the concrete case of your question the origin of the operators could be from any other exact or heuristic optimization methods .
I compared the NSGA2 with the Exploration of the Extremes of Variables Codes Algorithm for a particular research task and obtained best results with a easier and much more compact algorithm. In the worst case both algorithm have same order behaivor. I am attaching a presentation in Spanish Lenguage that I think you are able to understand.