Nice work Luke.I have that book as well, but I would caution doing lower trigger cutouts on modern semi-auto's.I am fortunate to have several customers and friends that are LEO's and gun safety instructors.When I started making holsters, that was an issue that came up immeadiately.One of them told me a story of a police dept. that ordered new holsters for thier Glocks (which have no seperate safety).The new holsters had a generous cutout and within months the dept. had numerous as in almost 30 accidental discharges mostly due to LEO's grabbing the trigger on extraction.So I no longer have cutouts on semi-autos, better be safe than sorry.
I don't know how true it is, but the same fellow told me that cutout was designed by the Texas Rangers and just kind of stuck as a prefered way of doing holsters.Anyways I like your holster and I'm sure you'll have a happy customer.Dave
This is how I do Glock Holsters now