[_paralyzed_]

you need to use something large enough that it has to be pressed in. some even heat the shaft in an oven to expand it and then press in the pin. I ground the edges off an allen wrench and pressed it in with a vice and then dremeled off the excess. whether you go single or dual plettys I would do this upgrade, I've snapped two rollpins with a 6.5 hv maxx, and thats 1/5 the power of one pletty