Greetings all:
In my reference to boring chain I was speaking of chain that I bought in PA. The Stihl dealer was used to selling chains into the veneer choppers market where boring makes money, the wood is hard and the saws are plenty powerful.

Stihl Duromatic (hard nose no roller) and rsc3 and rmc3 chains are what I am familiar with. AS with any special operations: just ask the guys and gals that sell and use the stuff.

All chain companies will sell you their best for any task.

All that said: never blame the tool or the advice of others, and never stand down range of the top of the chain. Plunge cutting is scary stuff,the lucky get a second chance to fail, chain speed is but one key to the task. If it isn't sharp, stop now.

Happy carving,
Curtis