Are both HY100 and HY270 both suitable for grout filled CMU?

I am just looking for an explanation in the distinction between the two epoxy types in the title. In Hilti Profis, I am getting higher bond strength capacity with HY100 with threaded rod when checking a connection for shear, however it would seem from the product descriptions that the HY270 would be the higher performing product. Are there any distinctions in the applications that these two products should and shouldn't be used for?