I have watched that video repeatedly as well as the related one (he did an early video with mixed success and a later one with more success where he also talked about G10 L20). That video is the reason I bought the lakeshore carbide tools instead of the other stuff I've been experimenting with but I have a very limited supply of 1/4" tool holders and plenty of 3/8 so I broke from the example and got the size I'm used to working with for aluminum. If I'm still not successful with these tools I will end up getting some 1/4" so I can exactly replicate his setup but I'm hoping to avoid that. My biggest issue seems to be that the second I hear the chatter, the tool is already damaged (though not visibly) so even if I back off from whatever the chatter causing parameters were, I can't get a good cut from that point on unless I change the tool.