Timing chain advice, split roller or solid

double rollers wearing the nylon on the tensioners only wear on the link ends. Once they do that (3 ditches) , they dont wear anymore as the rollers are now spreading the load of the chain on the nylon pad. Ever hear of a hydrodynamic wedge? It rides on an oil film. They have been used on millions of motors and work. My 82 Mazda has the same nylon chain guides and uses a double roller style chain and has a much smaller tensioner that does not wear past the initial tracks of the link ends.