I emailed him ahead of time. However, it's my understanding now that if you enclose a note AND payment, your good to go. Dan does ask that you mark the bolt with the measurement, as well as indicate if any other work has been done to the bolt, any special finishes applied, etc. If you'd like a different bolt handle installed, let him know in your note. I paid with a personal check made out to Dan personally, and had no hold-ups.
One other thing I found out after the fact, is that if you are using 'Euro-optics' as Dan calls them, i.e Swarovski, Kahles,etc, or optics with large ocular bells, it's a good idea to let him know.
