I bought a PMB end cap and figured now would be an ideal time to repack the silencer on my '02. The stock end cap came off easily enough, but now how do I get the old packing out? All the other silencers I've ever repacked, the core comes out with the end cap and you simply wrap it in packing, stuff it back in and roost. But the CRF silencer seems to be the opposite, the core stayed in. Do you have to drill out the other end to get the core out? Any tips would really help since I'm leaving on a week long riding trip and need to get this back together ASAP. Thanks!