Can someone lend some guidance on how they set up their hollow chisel
mortisers?

Mine have a similar melody.
I found you also have to experiment a little with the distance the drill bit
protrudes from the bottom of the hollow chisel.
Use some scrap wood to experiement, and when you find the depth that gives
the best results, write it down in a notebook along with the wood type and
keep it handy.

The machines can be a bit fiddly to set up, but once you have done so, they
are very handy.

--
Regards,

Dean Bielanowski
Editor,
Online Tool Reviews
http://www.onlinetoolreviews.com
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