Using a hammerstone for secondary thinning

For you knappers out there, I decided to post about thinning with hammerstones. I am no expert at this, but I  have gained, through experience, a basic idea of how to use a hammerstone for thinning. First, use a small hammerstone, it should be no larger than the end of a billet used for similar purposes. Secondly, abrade a lot  , make sure the platform is well rounded and dull. A relatively slow strike should be all the force required to detach a flake that will go past the center.

Some more of my knapping: two snyder points of  obsidian and harvester chert, a hornstone lanceolate, a flintridge side-notch, and an agate something.

Me Flintknapping

Here are some pictures of me flintknapping with Bob Love at the Great Lakes Traditional Arts Gathering last year.

Adena points

Adena points out of Kentucky hornstone. The big one has a 7/1 width to thickness ratio and is 3 3/4"; the small one has a ratio of 4.5/1.