I just did the teflon mod and WOW. I didn't expect to see the BB go so much faster, more consistent, and a little more accurate. It's easy and all you need is the tools (hex keys, screwdrivers) and teflon tape. I almost got fcked when I started stripping a screw (the most heart-sanking thing ever), but I managed to get it with a bigger screwdriver tip. But it took like an hour (because I was rushing and worrying about the screw), but well worth it.