Noninvasive, reversable and hard solution to the problem of a loose head. The only clubs I have seen with the original putty have been in museum. All the examples in the market that my budget is anywhere near all have loose heads. Not anymore one could adjust the colour and texture if you felt the need to, rubbing in some ash+fine grit.
This link is most helpful. Helping one understand the diffusion of metal and metal tools in the South Seas and this is just whalers. You can understand how some places became centres. Some people not so lucky, not on native trade routes, would remain without metal metal.
https://docs.google.com/viewer?a=v&q...YhzCWf_9Q3enng